Subtract 56/27 from 12/7
1st number: 1 5/7, 2nd number: 2 2/27
12/7 - 56/27 is -68/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
12/7 = 12 × 27/7 × 27 = 324/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
56/27 = 56 × 7/27 × 7 = 392/189 - Subtract the two like fractions:
324/189 - 392/189 = 324 - 392/189 = -68/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-56/27 12/14-56/27 12/7-56/54 36/7-56/27 12/21-56/27 12/7-56/81 60/7-56/27 12/35-56/27 84/7-56/27 12/49-56/27