Add 3/15 and 72/64
1st number: 3/15, 2nd number: 1 8/64
3/15 + 72/64 is 53/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 15 × 64 = 960,
3/15 = 3 × 64/15 × 64 = 192/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
72/64 = 72 × 15/64 × 15 = 1080/960 - Add the two like fractions:
192/960 + 1080/960 = 192 + 1080/960 = 1272/960 - 1272/960 simplified gives 53/40
- So, 3/15 + 72/64 = 53/40
In mixed form: 113/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+72/64 3/30+72/64 9/15+72/64 3/45+72/64 3/75+72/64 21/15+72/64