Add 50/42 and 14/21, Solve 1 8/42 + 14/21 as a fraction

Add 50/42 and 14/21

1^st number: 1 8/42, 2^nd number: 14/21

50/42 + 14/21 is 13/7.

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

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
50/42 = 50 × 1/42 × 1 = 50/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
14/21 = 14 × 2/21 × 2 = 28/42
Add the two like fractions:
50/42 + 28/42 = 50 + 28/42 = 78/42
78/42 simplified gives 13/7
So, 50/42 + 14/21 = 13/7
In mixed form: 16/7

MathStep (Works offline)

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