Solutions by everydaycalculation.com

## Subtract 20/56 from 1/3

1/3 - 20/56 is -1/42.

#### Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
LCM of 3 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 3 × 56 = 168,
1/3 = 1 × 56/3 × 56 = 56/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168
4. Subtract the two like fractions:
56/168 - 60/168 = 56 - 60/168 = -4/168
5. After reducing the fraction, the answer is -1/42

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