Add 1/14 and 90/12, Solve 1/14 + 7 6/12 as a fraction

Add 1/14 and 90/12

1^st number: 1/14, 2^nd number: 7 6/12

1/14 + 90/12 is 53/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 14 × 6 = 84,
1/14 = 1 × 6/14 × 6 = 6/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84
Add the two like fractions:
6/84 + 630/84 = 6 + 630/84 = 636/84
636/84 simplified gives 53/7
So, 1/14 + 90/12 = 53/7
In mixed form: 74/7

MathStep (Works offline)

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