Subtract 54/28 from 7/27
1st number: 7/27, 2nd number: 1 26/28
7/27 - 54/28 is -631/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
7/27 = 7 × 28/27 × 28 = 196/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
54/28 = 54 × 27/28 × 27 = 1458/756 - Subtract the two like fractions:
196/756 - 1458/756 = 196 - 1458/756 = -1262/756 - After reducing the fraction, the answer is -631/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-54/28 7/54-54/28 7/27-54/56 21/27-54/28 7/81-54/28 7/27-54/84 35/27-54/28 49/27-54/28