Subtract 40/27 from 6/7
1st number: 6/7, 2nd number: 1 13/27
6/7 - 40/27 is -118/189.
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,
6/7 = 6 × 27/7 × 27 = 162/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
40/27 = 40 × 7/27 × 7 = 280/189 - Subtract the two like fractions:
162/189 - 280/189 = 162 - 280/189 = -118/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-40/27 6/7-80/27 6/14-40/27 6/7-40/54 18/7-40/27 6/21-40/27 6/7-40/81 30/7-40/27 6/35-40/27 42/7-40/27 6/49-40/27