### Home > MC1 > Chapter 7 > Lesson 7.2.5 > Problem 7-94

7-94.

Show how finding a Least Common Multiple can help you to simplify each of the following expressions. Then simplify them.

What is the least common multiple of

and ? How can this help you with this calculation? Convert two-thirds to a fraction with a denominator of

. Subtract five-twelfths from your answer to Step 1.

See the steps in part (a) for help. In this problem, you might need to rewrite both fractions so that they have a common denominator.