Subtract 56/27 from 16/21
1st number: 16/21, 2nd number: 2 2/27
16/21 - 56/27 is -248/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
16/21 = 16 × 9/21 × 9 = 144/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
56/27 = 56 × 7/27 × 7 = 392/189 - Subtract the two like fractions:
144/189 - 392/189 = 144 - 392/189 = -248/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21-56/27 16/42-56/27 16/21-56/54 48/21-56/27 16/63-56/27 16/21-56/81 80/21-56/27