Add 36/28 and 21/3, Solve 1 8/28 + 7 0/3 as a fraction

Add 36/28 and 21/3

1^st number: 1 8/28, 2^nd number: 7 0/3

36/28 + 21/3 is 58/7.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 28 × 3 = 84,
36/28 = 36 × 3/28 × 3 = 108/84
Likewise, for the 2nd fraction, since 3 × 28 = 84,
21/3 = 21 × 28/3 × 28 = 588/84
Add the two like fractions:
108/84 + 588/84 = 108 + 588/84 = 696/84
696/84 simplified gives 58/7
So, 36/28 + 21/3 = 58/7
In mixed form: 82/7

MathStep (Works offline)

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