Add 90/12 and 96/7, Solve 7 6/12 + 13 5/7 as a fraction

Add 90/12 and 96/7

1^st number: 7 6/12, 2^nd number: 13 5/7

90/12 + 96/7 is 297/14.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84
Likewise, for the 2nd fraction, since 7 × 12 = 84,
96/7 = 96 × 12/7 × 12 = 1152/84
Add the two like fractions:
630/84 + 1152/84 = 630 + 1152/84 = 1782/84
1782/84 simplified gives 297/14
So, 90/12 + 96/7 = 297/14
In mixed form: 213/14

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad