Subtract 28/64 from 1/15
1/15 - 28/64 is -89/240.
Steps for subtracting 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,
1/15 = 1 × 64/15 × 64 = 64/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
28/64 = 28 × 15/64 × 15 = 420/960 - Subtract the two like fractions:
64/960 - 420/960 = 64 - 420/960 = -356/960 - After reducing the fraction, the answer is -89/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-28/64 1/15-56/64 1/30-28/64 3/15-28/64 1/15-84/64 1/45-28/64 5/15-28/64 1/75-28/64 7/15-28/64