Subtract 54/27 from 1/7
1st number: 1/7, 2nd number: 2 0/27
1/7 - 54/27 is -13/7.
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,
1/7 = 1 × 27/7 × 27 = 27/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
54/27 = 54 × 7/27 × 7 = 378/189 - Subtract the two like fractions:
27/189 - 378/189 = 27 - 378/189 = -351/189 - After reducing the fraction, the answer is -13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7-54/27 1/14-54/27 3/7-54/27 1/21-54/27 1/7-54/81 5/7-54/27 1/35-54/27 1/49-54/27