Subtract 56/42 from 15/25, Solve 15/25

Subtract 56/42 from 15/25

1^st number: 15/25, 2^nd number: 1 14/42

15/25 - 56/42 is -11/15.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 25 × 42 = 1050,
15/25 = 15 × 42/25 × 42 = 630/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
56/42 = 56 × 25/42 × 25 = 1400/1050
Subtract the two like fractions:
630/1050 - 1400/1050 = 630 - 1400/1050 = -770/1050
After reducing the fraction, the answer is -11/15

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