Add 72/30 and 4/12, Solve 2 12/30 + 4/12 as a fraction

Add 72/30 and 4/12

1^st number: 2 12/30, 2^nd number: 4/12

72/30 + 4/12 is 41/15.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
4/12 = 4 × 5/12 × 5 = 20/60
Add the two like fractions:
144/60 + 20/60 = 144 + 20/60 = 164/60
164/60 simplified gives 41/15
So, 72/30 + 4/12 = 41/15
In mixed form: 211/15

MathStep (Works offline)

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