Subtract 81/49 from 56/28, Solve 2 0/28

Subtract 81/49 from 56/28

1^st number: 2 0/28, 2^nd number: 1 32/49

56/28 - 81/49 is 17/49.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196

Next, find the equivalent fraction of both fractional numbers with denominator 196
For the 1st fraction, since 28 × 7 = 196,
56/28 = 56 × 7/28 × 7 = 392/196
Likewise, for the 2nd fraction, since 49 × 4 = 196,
81/49 = 81 × 4/49 × 4 = 324/196
Subtract the two like fractions:
392/196 - 324/196 = 392 - 324/196 = 68/196
After reducing the fraction, the answer is 17/49

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