Subtract 21/7 from 56/25, Solve 2 6/25

Subtract 21/7 from 56/25

1^st number: 2 6/25, 2^nd number: 3 0/7

56/25 - 21/7 is -19/25.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175

Next, find the equivalent fraction of both fractional numbers with denominator 175
For the 1st fraction, since 25 × 7 = 175,
56/25 = 56 × 7/25 × 7 = 392/175
Likewise, for the 2nd fraction, since 7 × 25 = 175,
21/7 = 21 × 25/7 × 25 = 525/175
Subtract the two like fractions:
392/175 - 525/175 = 392 - 525/175 = -133/175
After reducing the fraction, the answer is -19/25

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