Subtract 25/56 from 60/42, Solve 1 18/42

Subtract 25/56 from 60/42

1^st number: 1 18/42, 2^nd number: 25/56

60/42 - 25/56 is 55/56.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
60/42 = 60 × 4/42 × 4 = 240/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
25/56 = 25 × 3/56 × 3 = 75/168
Subtract the two like fractions:
240/168 - 75/168 = 240 - 75/168 = 165/168
After reducing the fraction, the answer is 55/56

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