### Home > CAAC > Chapter 12 > Lesson 12.1.1 > Problem 12-10

12-10.

To add or subtract fractions with a common denominator, add or subtract the numerators.

For part (b), you must first find a common denominator.

12-10.

To add or subtract fractions with a common denominator, add or subtract the numerators.

For part (b), you must first find a common denominator.