Subtract 10/27 from 7/28
7/28 - 10/27 is -13/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
7/28 = 7 × 27/28 × 27 = 189/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
10/27 = 10 × 28/27 × 28 = 280/756 - Subtract the two like fractions:
189/756 - 280/756 = 189 - 280/756 = -91/756 - After reducing the fraction, the answer is -13/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-10/27 7/28-20/27 7/56-10/27 7/28-10/54 21/28-10/27 7/28-30/27 7/84-10/27 7/28-10/81 35/28-10/27 7/28-50/27 49/28-10/27 7/28-70/27