Subtract 10/64 from 10/21
10/21 - 10/64 is 215/672.
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,
10/21 = 10 × 64/21 × 64 = 640/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
10/64 = 10 × 21/64 × 21 = 210/1344 - Subtract the two like fractions:
640/1344 - 210/1344 = 640 - 210/1344 = 430/1344 - After reducing the fraction, the answer is 215/672
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21-10/64 10/21-20/64 10/42-10/64 30/21-10/64 10/21-30/64 10/63-10/64 50/21-10/64 10/21-50/64 70/21-10/64 10/21-70/64