Add 28/15 and 72/60
1st number: 1 13/15, 2nd number: 1 12/60
28/15 + 72/60 is 46/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
72/60 = 72 × 1/60 × 1 = 72/60 - Add the two like fractions:
112/60 + 72/60 = 112 + 72/60 = 184/60 - 184/60 simplified gives 46/15
- So, 28/15 + 72/60 = 46/15
In mixed form: 31/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+72/60 28/30+72/60 84/15+72/60 28/45+72/60 28/75+72/60