Add 72/15 and 7/8
1st number: 4 12/15, 2nd number: 7/8
72/15 + 7/8 is 227/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
72/15 = 72 × 8/15 × 8 = 576/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
7/8 = 7 × 15/8 × 15 = 105/120 - Add the two like fractions:
576/120 + 105/120 = 576 + 105/120 = 681/120 - 681/120 simplified gives 227/40
- So, 72/15 + 7/8 = 227/40
In mixed form: 527/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15+14/8 72/30+7/8 72/15+7/16 72/15+21/8 72/45+7/8 72/15+7/24 72/15+35/8 72/75+7/8 72/15+7/40 72/15+49/8 72/15+7/56