Add 15/64 and 56/90
15/64 + 56/90 is 2467/2880.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 90 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 64 × 45 = 2880,
15/64 = 15 × 45/64 × 45 = 675/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
56/90 = 56 × 32/90 × 32 = 1792/2880 - Add the two like fractions:
675/2880 + 1792/2880 = 675 + 1792/2880 = 2467/2880 - So, 15/64 + 56/90 = 2467/2880
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/64+56/90 45/64+56/90 75/64+56/90