Add 60/42 and 20/18, Solve 1 18/42 + 1 2/18 as a fraction

Add 60/42 and 20/18

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

60/42 + 20/18 is 160/63.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
60/42 = 60 × 3/42 × 3 = 180/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126
Add the two like fractions:
180/126 + 140/126 = 180 + 140/126 = 320/126
320/126 simplified gives 160/63
So, 60/42 + 20/18 = 160/63
In mixed form: 234/63

MathStep (Works offline)

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