Where is fraction button on calculator

Type the numerator into your calculator, then push the divide button. Next, type the bottom number into the calculator, which is the denominator. Hit the equal sign to get your decimal. Any time you see a fraction, it's a form of division. Write the integer in a mixed number, followed by the decimal number.

Mixed numbers include both an integer and a fraction. The integer will stay the same when you turn the fraction into a decimal. Write the integer in your answer box, then divide the numerator in the fraction by the denominator.

Put a decimal point after the integer and write the decimal number you got when you divided the fraction.

Write 2. Turn 2 fractions into decimals before computing them. Then, use the decimal numbers to calculate an answer. Finally, add. Method 5. Divide the top number by the bottom number. Treat the fraction bar as a division sign.

Type the top number into your calculator, then click divide. Type in the bottom number in the fraction, then click the equal sign. This will give you a decimal number. Multiple the result by to convert it into a percent. A percent is taken out of , so multiplying the decimal by turns it into a percent. Type your decimal into the calculator, then hit the multiply button.

Enter , then click the equal sign. As an example, multiply. You can also just move the decimal point over 2 numbers to the right. When you write out the number, put a percent after the number to make it a percent. This will show people that the number is a percentage out of Did you know you can get expert answers for this article? Unlock expert answers by supporting wikiHow. David Jia Math Tutor. David Jia. Support wikiHow by unlocking this expert answer. Yes No. Not Helpful 1 Helpful 2.

You can also set the calculator to always display results using scientific notation with a set number of significant figures using the key sequence SETUP Sci followed by the number of significant figures required, for example.

When your calculator is set in this fashion, the display indicator SCI is displayed at the top of the screen. Numbers expressed in scientific notation can be input directly to the calculator by using the key on the bottom row of keys.

For example, can be entered using the key sequence. Use the scientific notation functions of your calculator to calculate each of the following, giving your answer in both scientific and ordinary forms. In Activity 4 you saw how to use the key to input powers on the calculator. The key can be used with other functions, such as the fraction template , to calculate fractional and negative powers.

Calculate each of the following using your calculator, giving your answer correct to 3 significant figures. Just as there are keys on your calculator for entering powers, roots can also be entered directly.

Square roots can be calculated using the key. For example, can be entered using. Cube roots are entered using the second function of this key. For higher roots, such as fourth or fifth roots you need to use the more general template, which is the second function of the key. This template is filled in by using the number and arrow keys and in a way similar to that used when the fraction template is completed.

You will notice from the result of Activity 15, part 4 that the calculator sometimes presents answers using surds. To find the decimal equivalent of an answer like this, you can use the or keys that you used earlier to find the decimal forms of fractional answers.

Sometimes when entering into your calculator an expression involving roots, you may accidentally forget to press the appropriate function key. However, moving the cursor to the correct point and pressing the missing key, as in section 1, will not work as this simply inserts an empty template. If you wish to edit an expression to insert a missing root, first move the cursor to the correct place — that is, to the left of the number. There are various different units in which an angle can be measured, degrees being one of the possibilities.

Before using your calculator to find the values of the trigonometric ratios of angles measured in degrees, you need to ensure that it is set to use the correct units. Always check that your calculator is using the correct system of angle measurement before using trigonometric ratios. Your calculator is set to use degrees if the display indicator is shown at the top of the screen. If you see the indicator or , then your calculator is set to use different units for measuring angles.

To calculate the sine, cosine or tangent of an angle, press the , or key and then type in the size of the angle. Note that the , and keys automatically open a bracket for you.

If you are simply calculating the sine, cosine or tangent of an angle, just press after entering the angle — there is no need to close the bracket. If you are using these ratios as part of a larger calculation, then you will need to remember to close the bracket yourself by pressing before entering the remainder of the calculation.

Some older models of calculator require the angle to be input first, followed by the , or button. Calculate the value of each of the following using your calculator, giving your answers correct to 3 significant figures. If you obtained the answer 0. Note that when entering this expression in your calculator, it is possible to omit explicitly entering the multiplication between the 2 and since the calculator will assume it.

Note that means first find the sine of , then square the answer. The key sequence to enter into the calculator is thus. The first is necessary to close the bracket automatically opened when pressing , and the second closes the bracket opened at the start of the sequence.

Since the calculator evaluates the sine as soon as it encounters the first closing bracket, it is possible to enter this expression using the alternative sequence , but this is not recommended as the former is more clear. It is a property of trigonometric ratios that for any angle ,. You will notice from the answer to part 3 that the calculator displays the ratios of some angles as fractions, involving surds where needed, and not in decimal form.

The decimal form can be found using or. Inverse trigonometric values can be found using the second functions , and of the , and keys. These functions are used in a similar manner to , and. Calculate the value of each of the following expressions using your calculator, where possible, giving your answers correct to 1 decimal place. If you obtained the answer or 0.

Make sure that you are working in degrees. In part 1 of the activity above, you used your calculator to find an angle whose sine is 0. This is not the only angle whose sine is 0. Similar remarks apply to parts 2 and 3. Your calculator can be set to calculate trigonometric functions using the radian measure for angles, instead of degrees, by using the key sequence SETUP Rad.

When in this mode, the display indicator is shown. In this activity, the angles are measured in radians. Find the values of the following expressions, giving your answers correct to 3 significant figures. Remember: can be input to the calculator using. Notice from the final example in this activity that where an answer is a simple possibly fractional multiple of , the answer is displayed in terms of rather than as a decimal number.

Logarithms to base 10 of numbers can be found using the key. For example, can be calculated using the key sequence. Note that as with the trigonometric functions, the key automatically opens a bracket that must be closed if you are using the calculated logarithm as part of a longer calculation.

The second function of the key , accessed using , can be used as an alternative to when calculating powers of All the calculations are logarithms to base 10, so we use the key. Natural logarithms, for example , can be evaluated on your calculator using the key. The second function of this key permits the calculation of powers of. Note that an approximate value for itself can be obtained using the key sequence.

Remember that means the same as ln. Some calculators have a key instead of. Calculate the value of each of the following using your calculator, giving each answer to 3 significant figures.

Notice that this is about three times the answer to part 2. In fact, the exact value of is precisely three times the exact value of.

This is because , and for any base of logarithm,. This is an important result for logarithms. In this case we have. To calculate this answer correctly, you need to remember to close the bracket after the 3 on your calculator display. Comp mode is selected by using the key sequence COMP.

There are two different ways in which mathematics can be input to and displayed on the calculator:. You know that you are in Math mode if the word Math is shown near the right-hand side of the top of the calculator display. If this is not shown, you are using Linear mode. In Math mode, you can force an answer to be displayed as a decimal using , or you can toggle between the mathematical and decimal outputs using.

It is possible to set the calculator so that answers that are top-heavy fractions such as are always displayed as mixed numbers such as. The key has been pressed.

You will need to do some guesswork, and this method of working is based on trial and error. Scientific calculators are some of the most powerful tools students have in their arsenal when tackling complex problems of all sorts.

And now that you know how to use the scientific calculator to do fractions, you can use it to its full potential. You can convert your decimal into a fraction with the help of your calculator using the steps mentioned above.

We have various comprehensive calculators that you can use online for free. You can choose from t-test calculator, graphing , matrix, the standard deviation to statistics , and scientific calculators. Check it here.

It indicates a way to see more nav menu items inside the site menu by triggering the side menu to open and close. Taylor Lyles. You can do fractions on your iPhone calculator using two different methods. Visit Business Insider's homepage for more stories. Taylor Lyles is a freelance writer for Business Insider. Insider Inc. Additional comments.