Subtract 2/21 from 30/32
30/32 - 2/21 is 283/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
30/32 = 30 × 21/32 × 21 = 630/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
2/21 = 2 × 32/21 × 32 = 64/672 - Subtract the two like fractions:
630/672 - 64/672 = 630 - 64/672 = 566/672 - After reducing the fraction, the answer is 283/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/32-2/21 30/32-4/21 30/64-2/21 30/32-2/42 90/32-2/21 30/32-6/21 30/96-2/21 30/32-2/63 30/32-10/21 30/32-14/21