Add 72/8 and 72/15
1st number: 9 0/8, 2nd number: 4 12/15
72/8 + 72/15 is 69/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
72/8 = 72 × 15/8 × 15 = 1080/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
72/15 = 72 × 8/15 × 8 = 576/120 - Add the two like fractions:
1080/120 + 576/120 = 1080 + 576/120 = 1656/120 - 1656/120 simplified gives 69/5
- So, 72/8 + 72/15 = 69/5
In mixed form: 134/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/16+72/15 72/8+72/30 72/24+72/15 72/8+72/45 72/40+72/15 72/8+72/75 72/56+72/15