### Home > CC1MN > Chapter 3 Unit 3A > Lesson CC1: 3.2.1 > Problem 3-97

3-97.

Compute each sum or difference.

Before adding or subtracting, convert one or both fractions so that they have a common denominator.

The Lowest Common Denominator is

.

The Lowest Common Denominator is

.

The Lowest Common Denominator is

.