Subtract 20/56 from 6/15
6/15 - 20/56 is 3/70.
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,
20/56 = 20 × 15/56 × 15 = 300/840 - Subtract the two like fractions:
336/840 - 300/840 = 336 - 300/840 = 36/840 - After reducing the fraction, the answer is 3/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15-20/56 6/15-40/56 6/30-20/56 18/15-20/56 6/15-60/56 6/45-20/56 30/15-20/56 6/75-20/56 42/15-20/56