Subtract 75/27 from 6/7
1st number: 6/7, 2nd number: 2 21/27
6/7 - 75/27 is -121/63.
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,
75/27 = 75 × 7/27 × 7 = 525/189 - Subtract the two like fractions:
162/189 - 525/189 = 162 - 525/189 = -363/189 - After reducing the fraction, the answer is -121/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-75/27 6/14-75/27 6/7-75/54 18/7-75/27 6/21-75/27 6/7-75/81 30/7-75/27 6/35-75/27 42/7-75/27 6/49-75/27