Subtract 56/7 from 84/25, Solve 3 9/25

Subtract 56/7 from 84/25

1^st number: 3 9/25, 2^nd number: 8 0/7

84/25 - 56/7 is -116/25.

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,
84/25 = 84 × 7/25 × 7 = 588/175
Likewise, for the 2nd fraction, since 7 × 25 = 175,
56/7 = 56 × 25/7 × 25 = 1400/175
Subtract the two like fractions:
588/175 - 1400/175 = 588 - 1400/175 = -812/175
After reducing the fraction, the answer is -116/25

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