Subtract 10/15 from 5/28
5/28 - 10/15 is -41/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
5/28 = 5 × 15/28 × 15 = 75/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
10/15 = 10 × 28/15 × 28 = 280/420 - Subtract the two like fractions:
75/420 - 280/420 = 75 - 280/420 = -205/420 - After reducing the fraction, the answer is -41/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28-10/15 5/28-20/15 5/56-10/15 5/28-10/30 15/28-10/15 5/28-30/15 5/84-10/15 5/28-10/45 25/28-10/15 5/28-50/15 5/28-10/75 35/28-10/15 5/28-70/15