Subtract 40/7 from 7/27
1st number: 7/27, 2nd number: 5 5/7
7/27 - 40/7 is -1031/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
7/27 = 7 × 7/27 × 7 = 49/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
40/7 = 40 × 27/7 × 27 = 1080/189 - Subtract the two like fractions:
49/189 - 1080/189 = 49 - 1080/189 = -1031/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-40/7 7/27-80/7 7/54-40/7 7/27-40/14 21/27-40/7 7/81-40/7 7/27-40/21 35/27-40/7 7/27-40/35 49/27-40/7 7/27-40/49