for fraction the symbol you need is the division symbol "÷" Now not sure what calculator you have but some calculators also have the forward slash symbol "/" which can be used as well.

Keep in mind that to enter the fraction, you need to enter the numerator(top number) first then the symbol (either ÷ or / ) and next you enter the denominator(bottom number)

If you have any question about this solution let me know.

It depends on the calculator you are using.  Some calculators simply use the division sign button (either ÷ or / ).  Some calculators have a button that says a ^b/_c.

If you have an a ^b/_c button you usually have to press it between each number in the fraction.  For example to enter 5¹/₂ press 5, a ^b/_c, 1, a ^b/_c, 2, enter.  To enter ¹/₂ press 1, a ^b/_c, 2, enter.

If you have the calculator instructions or user's manual you can probably look in it.  Otherwise try a simple calculation you already know the answer to using one of the buttons mentioned above and make sure you are inputting the fraction correctly into your calculator.

A fraction is just one number divided by another number. For example, one half = 1 divided by 2 = 1 / 2