Add 15/64 and 21/27
15/64 + 21/27 is 583/576.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 27 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 64 × 27 = 1728,
15/64 = 15 × 27/64 × 27 = 405/1728 - Likewise, for the 2nd fraction, since 27 × 64 = 1728,
21/27 = 21 × 64/27 × 64 = 1344/1728 - Add the two like fractions:
405/1728 + 1344/1728 = 405 + 1344/1728 = 1749/1728 - 1749/1728 simplified gives 583/576
- So, 15/64 + 21/27 = 583/576
In mixed form: 17/576
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/64+21/27 15/64+42/27 15/64+21/54 45/64+21/27 15/64+63/27 15/64+21/81 75/64+21/27