Subtract 16/6 from 32/21
1st number: 1 11/21, 2nd number: 2 4/6
32/21 - 16/6 is -8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
32/21 = 32 × 2/21 × 2 = 64/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
16/6 = 16 × 7/6 × 7 = 112/42 - Subtract the two like fractions:
64/42 - 112/42 = 64 - 112/42 = -48/42 - After reducing the fraction, the answer is -8/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/21-16/6 32/21-32/6 32/42-16/6 32/21-16/12 96/21-16/6 32/21-48/6 32/63-16/6 32/21-16/18 32/21-80/6 32/21-16/30 32/21-16/42