Subtract 9/32 from 10/21
10/21 - 9/32 is 131/672.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
10/21 = 10 × 32/21 × 32 = 320/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
9/32 = 9 × 21/32 × 21 = 189/672 - Subtract the two like fractions:
320/672 - 189/672 = 320 - 189/672 = 131/672
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21-9/32 10/21-18/32 10/42-9/32 10/21-9/64 30/21-9/32 10/21-27/32 10/63-9/32 10/21-9/96 50/21-9/32 10/21-45/32 70/21-9/32 10/21-63/32