Subtract 14/32 from 4/21
4/21 - 14/32 is -83/336.
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,
4/21 = 4 × 32/21 × 32 = 128/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
14/32 = 14 × 21/32 × 21 = 294/672 - Subtract the two like fractions:
128/672 - 294/672 = 128 - 294/672 = -166/672 - After reducing the fraction, the answer is -83/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21-14/32 4/21-28/32 4/42-14/32 4/21-14/64 12/21-14/32 4/21-42/32 4/63-14/32 4/21-14/96 20/21-14/32 4/21-70/32 28/21-14/32 4/21-98/32