Add 60/18 and 3/42, Solve 3 6/18 + 3/42 as a fraction

Add 60/18 and 3/42

1^st number: 3 6/18, 2^nd number: 3/42

60/18 + 3/42 is 143/42.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
60/18 = 60 × 7/18 × 7 = 420/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
3/42 = 3 × 3/42 × 3 = 9/126
Add the two like fractions:
420/126 + 9/126 = 420 + 9/126 = 429/126
429/126 simplified gives 143/42
So, 60/18 + 3/42 = 143/42
In mixed form: 317/42

MathStep (Works offline)

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