Add 28/15 and 56/64
1st number: 1 13/15, 2nd number: 56/64
28/15 + 56/64 is 329/120.
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,
28/15 = 28 × 64/15 × 64 = 1792/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
56/64 = 56 × 15/64 × 15 = 840/960 - Add the two like fractions:
1792/960 + 840/960 = 1792 + 840/960 = 2632/960 - 2632/960 simplified gives 329/120
- So, 28/15 + 56/64 = 329/120
In mixed form: 289/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+56/64 28/30+56/64 84/15+56/64 28/45+56/64 28/75+56/64