### Home > CC2 > Chapter Ch2 > Lesson 2.3.1 > Problem 2-117

2-117.

Copy each expression and then simplify it without using a calculator. Be sure to show all steps. Homework Help ✎

This sum can be represented with a diagram:

Find a common denominator to add the two fractions.

See part (a) for strategy.

Draw

squares on your paper like this: Cross off

. What is left?