Subtract 27/32 from 27/21
1st number: 1 6/21, 2nd number: 27/32
27/21 - 27/32 is 99/224.
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,
27/21 = 27 × 32/21 × 32 = 864/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
27/32 = 27 × 21/32 × 21 = 567/672 - Subtract the two like fractions:
864/672 - 567/672 = 864 - 567/672 = 297/672 - After reducing the fraction, the answer is 99/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-27/32 27/21-54/32 27/42-27/32 27/21-27/64 81/21-27/32 27/21-81/32 27/63-27/32 27/21-27/96