Question

How do you solve -7 2/3 + (-5 1/2) + 8 3/4 ?

Answer 1

Explanation:

Find the least common denominator or LCM of the two denominators:

LCM of 4 and 8 is 8

For the 1st fraction, since 4 × 2 = 8,

3/4=3 × 2/4 × 2 = 6/8

Likewise, for the 2nd fraction, since 8 × 1 = 8,

5/8= 5 × 1/8 × 1 = 5/8

Add the two fractions:

6/8 + 5/8 = 6 + 5/8 = 11/8

So, 3/4 + 5/8 = 11/8

In mixed form: 1 3/8