How to Do Fractions on a TI-30X IIS

Simple Fractions

• 1

  Enter the numerator using the keys on the TI-30X IIS. The numerator is the top number in the fraction. For example, in the fraction ½, the 1 is the numerator.

• 2

  Press the "A b/c" key. The key is located on the third row from the top of the calculator.

• 3

  Enter the denominator of the fraction. Using the previous example of ½, the denominator is 2.

• 4

  Enter the remainder of the problem, and press "Enter" to solve. For example, if you want to add a whole number to the fraction, press the "+" key and whole number, then press "Enter."

Mixed Fractions

• 5

  Enter the whole number using the keys of the TI-30X IIS. For example, the whole number in the fraction 1 3/6 is 1.

• 6

  Press the "A b/c" key, and then enter the numerator. The numerator is the top number of the fraction. Using the previous example, the numerator is 3.

• 7

  Press the "A b/c" key again and enter the denominator. In 1 3/6, the denominator is 6.

• 8

  Enter the remainder of the math problem, and press "Enter" to solve.