Subtract 15/64 from 7/28
7/28 - 15/64 is 1/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 28 × 16 = 448,
7/28 = 7 × 16/28 × 16 = 112/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
15/64 = 15 × 7/64 × 7 = 105/448 - Subtract the two like fractions:
112/448 - 105/448 = 112 - 105/448 = 7/448 - After reducing the fraction, the answer is 1/64
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-15/64 7/28-30/64 7/56-15/64 21/28-15/64 7/28-45/64 7/84-15/64 35/28-15/64 7/28-75/64 49/28-15/64