Subtract 8/15 from 20/56
20/56 - 8/15 is -37/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
8/15 = 8 × 56/15 × 56 = 448/840 - Subtract the two like fractions:
300/840 - 448/840 = 300 - 448/840 = -148/840 - After reducing the fraction, the answer is -37/210
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