Subtract 18/7 from 6/27
1st number: 6/27, 2nd number: 2 4/7
6/27 - 18/7 is -148/63.
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,
6/27 = 6 × 7/27 × 7 = 42/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
18/7 = 18 × 27/7 × 27 = 486/189 - Subtract the two like fractions:
42/189 - 486/189 = 42 - 486/189 = -444/189 - After reducing the fraction, the answer is -148/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/27-18/7 6/27-36/7 6/54-18/7 6/27-18/14 18/27-18/7 6/27-54/7 6/81-18/7 6/27-18/21 30/27-18/7 6/27-90/7 6/27-18/35 42/27-18/7 6/27-18/49