Subtract 42/7 from 4/27
1st number: 4/27, 2nd number: 6 0/7
4/27 - 42/7 is -158/27.
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,
4/27 = 4 × 7/27 × 7 = 28/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
42/7 = 42 × 27/7 × 27 = 1134/189 - Subtract the two like fractions:
28/189 - 1134/189 = 28 - 1134/189 = -1106/189 - After reducing the fraction, the answer is -158/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/27-42/7 4/27-84/7 4/54-42/7 4/27-42/14 12/27-42/7 4/81-42/7 4/27-42/21 20/27-42/7 4/27-42/35 28/27-42/7 4/27-42/49