Subtract 35/64 from 3/21
3/21 - 35/64 is -181/448.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 21 × 64 = 1344,
3/21 = 3 × 64/21 × 64 = 192/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
35/64 = 35 × 21/64 × 21 = 735/1344 - Subtract the two like fractions:
192/1344 - 735/1344 = 192 - 735/1344 = -543/1344 - After reducing the fraction, the answer is -181/448
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21-35/64 3/21-70/64 3/42-35/64 9/21-35/64 3/63-35/64 15/21-35/64