Subtract 20/56 from 8/15
8/15 - 20/56 is 37/210.
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,
8/15 = 8 × 56/15 × 56 = 448/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Subtract the two like fractions:
448/840 - 300/840 = 448 - 300/840 = 148/840 - After reducing the fraction, the answer is 37/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15-20/56 8/15-40/56 8/30-20/56 24/15-20/56 8/15-60/56 8/45-20/56 40/15-20/56 8/75-20/56 56/15-20/56