Subtract 20/56 from 4/36
4/36 - 20/56 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 36 × 14 = 504,
4/36 = 4 × 14/36 × 14 = 56/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Subtract the two like fractions:
56/504 - 180/504 = 56 - 180/504 = -124/504 - After reducing the fraction, the answer is -31/126
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