Add 72/15 and 7/5
1st number: 4 12/15, 2nd number: 1 2/5
72/15 + 7/5 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
72/15 = 72 × 1/15 × 1 = 72/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
7/5 = 7 × 3/5 × 3 = 21/15 - Add the two like fractions:
72/15 + 21/15 = 72 + 21/15 = 93/15 - 93/15 simplified gives 31/5
- So, 72/15 + 7/5 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15+14/5 72/30+7/5 72/15+7/10 72/15+21/5 72/45+7/5 72/15+7/15 72/15+35/5 72/75+7/5 72/15+7/25 72/15+49/5 72/15+7/35