Add 72/8 and 4/15
1st number: 9 0/8, 2nd number: 4/15
72/8 + 4/15 is 139/15.
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,
4/15 = 4 × 8/15 × 8 = 32/120 - Add the two like fractions:
1080/120 + 32/120 = 1080 + 32/120 = 1112/120 - 1112/120 simplified gives 139/15
- So, 72/8 + 4/15 = 139/15
In mixed form: 94/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8+8/15 72/16+4/15 72/8+4/30 72/8+12/15 72/24+4/15 72/8+4/45 72/8+20/15 72/40+4/15 72/8+4/75 72/8+28/15 72/56+4/15