Add 50/14 and 63/21, Solve 3 8/14 + 3 0/21 as a fraction

Add 50/14 and 63/21

1^st number: 3 8/14, 2^nd number: 3 0/21

50/14 + 63/21 is 46/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
50/14 = 50 × 3/14 × 3 = 150/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
63/21 = 63 × 2/21 × 2 = 126/42
Add the two like fractions:
150/42 + 126/42 = 150 + 126/42 = 276/42
276/42 simplified gives 46/7
So, 50/14 + 63/21 = 46/7
In mixed form: 64/7

MathStep (Works offline)

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