Often in math, you will be asked to work with fractions. In many high schools, students are allowed to work with scientific calculators, also known as graphing calculators, which perform many advanced math functions. Though it may not be apparent at first, you can use your scientific calculator to work with many fractions, even algebraic fractions or mixed numbers, which contain a whole number and a fraction.
Enter in the numerator of the fraction. The numerator is the number above the fraction bar.
Locate the divide key on your scientific calculator. The divide key looks like a slash (/) and will serve as the fraction bar on the calculator.
Enter in the denominator of the fraction. The denominator is the bottom number in the fraction.