Subtract 63/72 from 56/42, Solve 1 14/42

Subtract 63/72 from 56/42

1^st number: 1 14/42, 2^nd number: 63/72

56/42 - 63/72 is 11/24.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 42 × 12 = 504,
56/42 = 56 × 12/42 × 12 = 672/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504
Subtract the two like fractions:
672/504 - 441/504 = 672 - 441/504 = 231/504
After reducing the fraction, the answer is 11/24

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