Add 60/42 and 6/20, Solve 1 18/42 + 6/20 as a fraction

Add 60/42 and 6/20

1^st number: 1 18/42, 2^nd number: 6/20

60/42 + 6/20 is 121/70.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 42 × 10 = 420,
60/42 = 60 × 10/42 × 10 = 600/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
6/20 = 6 × 21/20 × 21 = 126/420
Add the two like fractions:
600/420 + 126/420 = 600 + 126/420 = 726/420
726/420 simplified gives 121/70
So, 60/42 + 6/20 = 121/70
In mixed form: 151/70

MathStep (Works offline)

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