### Home > CC1 > Chapter 4 > Lesson 4.2.4 > Problem4-81

4-81.

This problem is a checkpoint for addition and subtraction of mixed numbers. It will be referred to as Checkpoint 4.

Compute each sum or difference. Simplify if possible. Homework Help ✎

a.$5 \frac { 1 } { 2 } + 4 \frac { 2 } { 3 }$

b.$1 \frac { 5 } { 6 } + 2 \frac { 1 } { 5 }$

1. $9 \frac { 1 } { 3 } - 4 \frac { 1 } { 5 }$

1. $10 - 8 \frac { 2 } { 3 }$