# Arithmetic Operations with Rational Numbers

**Adding and Subtracting Like Fractions:** To add or subtract fractions with the same denominator, write the sum or difference of the numerators over the denominator.

**Adding and Subtracting Unlike Fractions:** To add or subtract fractions with different denominators, begin by using the LCD of the fractions to write equivalent fractions that have the same denominator.

Learn more about arithmetic operations with rational numbers by reading the explanation below.

Arithmetic Operations with Rational Numbers

**Practice:** Answer the following exercises about arithmetic operations with rational numbers.

Arithmetic Operations with Rational Numbers 1

Arithmetic Operations with Rational Numbers 2