### Home > CC1MN > Chapter 4 > Lesson 4.1.6 > Problem 4-66

4-66.

Fareed wants to add

Add the fractions by using a Giant One to create a common denominator.

What do you need to multiply the first term by so that the denominator is equal to

? Multiplying the denominator by

gives us . Now use a Giant One to solve the problem. Now that both fractions have the same denominator, you can add the fractions together by adding the numerator and keeping the denominator.

How can factors help you find a common denominator?

Four is a factor of eight. So eight can be a common denominator.