Subtract 9/3 from 20/56, Solve 20/56

Subtract 9/3 from 20/56

1^st number: 20/56, 2^nd number: 3 0/3

20/56 - 9/3 is -37/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168
Likewise, for the 2nd fraction, since 3 × 56 = 168,
9/3 = 9 × 56/3 × 56 = 504/168
Subtract the two like fractions:
60/168 - 504/168 = 60 - 504/168 = -444/168
After reducing the fraction, the answer is -37/14

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