Add 18/14 and 16/12, Solve 1 4/14 + 1 4/12 as a fraction

Add 18/14 and 16/12

1^st number: 1 4/14, 2^nd number: 1 4/12

18/14 + 16/12 is 55/21.

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,
18/14 = 18 × 6/14 × 6 = 108/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
16/12 = 16 × 7/12 × 7 = 112/84
Add the two like fractions:
108/84 + 112/84 = 108 + 112/84 = 220/84
220/84 simplified gives 55/21
So, 18/14 + 16/12 = 55/21
In mixed form: 213/21

MathStep (Works offline)

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