Subtract 28/56 from 6/15
6/15 - 28/56 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
6/15 = 6 × 56/15 × 56 = 336/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Subtract the two like fractions:
336/840 - 420/840 = 336 - 420/840 = -84/840 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15-28/56 6/30-28/56 18/15-28/56 6/15-84/56 6/45-28/56 30/15-28/56 6/75-28/56 42/15-28/56