Subtract 10/9 from 42/56, Solve 42/56

Subtract 10/9 from 42/56

1^st number: 42/56, 2^nd number: 1 1/9

42/56 - 10/9 is -13/36.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 56 × 9 = 504,
42/56 = 42 × 9/56 × 9 = 378/504
Likewise, for the 2nd fraction, since 9 × 56 = 504,
10/9 = 10 × 56/9 × 56 = 560/504
Subtract the two like fractions:
378/504 - 560/504 = 378 - 560/504 = -182/504
After reducing the fraction, the answer is -13/36

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