I need step by step instrucations on how to do fractions on casio fx-115es

Yes. Simply enter the fraction and press =. If the calculator is in the MathIO mode it will display the fraction in its simplest form. If you're in the LineIO mode, press the S--D button to convert the decimal to fraction.

To convert a single value from symbolic to decimal form, press S--D. To have all results come out in decimal, press SHIFT MODE 2 to switch to the LineIO mode.

Actually, the answer is 79.

The fx-115ES does not have a key for the modulus operation. Nor does it have an integer-part or fractional-part operation. However, it is possible to calculate the remainder using integer arithmetic.

Press MODE 4 to shift into integer mode. Then type in 3 5 2 - 9 1 * ( 3 5 2 / 9 1 ) = and see the answer 79. It's a pain as both numbers have to be entered twice, but it does get the job done.

To get back to working with real numbers again, press MODE 1 ( or MODE 2 for complex).

If you want your result to be displayed as fractions, set the Input/Output Mode to MthIO.
Press [Shift][MODE] to enter (Setup)
Select option [1:MthIO]

To convert a single result to decimal, press the S--D key. To have all results come out in decimal, press SHIFT MODE 2 to select the LineIO mode.

Press [SHIFT][MODE] to enter set up. Select [2:LineIO].

The Casio FX-115ES does not have a Computer Algebra System (or CAS), so it is incapable of factoring polynomials.
As to simplifications, the only ones that you can get with the FX-115ES are the display of fractions in their irreducible forms.

Sorry.

Press [SHIFT][MODE] to open SetUp. Select [1:MathIO]
To convert a fraction to sa decimal and (maybe) convert back to fraction, use the [S<>D] key.

Hello,
To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.
Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Hello,
Sorry the calculator handles fractions but not radicals. You may be interested in the newer Casios FX-115ES, or FX-991ES, (Natural display).
It handles a lof more that radical and fractions.
Hope it helps.