Subtract 56/27 from 84/21
1st number: 4 0/21, 2nd number: 2 2/27
84/21 - 56/27 is 52/27.
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,
84/21 = 84 × 9/21 × 9 = 756/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
56/27 = 56 × 7/27 × 7 = 392/189 - Subtract the two like fractions:
756/189 - 392/189 = 756 - 392/189 = 364/189 - After reducing the fraction, the answer is 52/27
- In mixed form: 125/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42-56/27 84/21-56/54 84/63-56/27 84/21-56/81