Subtract 9/64 from 5/21
5/21 - 9/64 is 131/1344.
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,
5/21 = 5 × 64/21 × 64 = 320/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
9/64 = 9 × 21/64 × 21 = 189/1344 - Subtract the two like fractions:
320/1344 - 189/1344 = 320 - 189/1344 = 131/1344
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21-9/64 5/21-18/64 5/42-9/64 15/21-9/64 5/21-27/64 5/63-9/64 25/21-9/64 5/21-45/64 35/21-9/64 5/21-63/64