Add 50/54 and 56/21, Solve 50/54 + 2 14/21 as a fraction

Add 50/54 and 56/21

1^st number: 50/54, 2^nd number: 2 14/21

50/54 + 56/21 is 97/27.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
50/54 = 50 × 7/54 × 7 = 350/378
Likewise, for the 2nd fraction, since 21 × 18 = 378,
56/21 = 56 × 18/21 × 18 = 1008/378
Add the two like fractions:
350/378 + 1008/378 = 350 + 1008/378 = 1358/378
1358/378 simplified gives 97/27
So, 50/54 + 56/21 = 97/27
In mixed form: 316/27

MathStep (Works offline)

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