Add 72/15 and 56/30
1st number: 4 12/15, 2nd number: 1 26/30
72/15 + 56/30 is 20/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
56/30 = 56 × 1/30 × 1 = 56/30 - Add the two like fractions:
144/30 + 56/30 = 144 + 56/30 = 200/30 - 200/30 simplified gives 20/3
- So, 72/15 + 56/30 = 20/3
In mixed form: 62/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+56/30 72/15+56/60 72/45+56/30 72/15+56/90 72/75+56/30