Subtract 21/56 from 42/16, Solve 2 10/16

Subtract 21/56 from 42/16

1^st number: 2 10/16, 2^nd number: 21/56

42/16 - 21/56 is 9/4.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 56 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
42/16 = 42 × 7/16 × 7 = 294/112
Likewise, for the 2nd fraction, since 56 × 2 = 112,
21/56 = 21 × 2/56 × 2 = 42/112
Subtract the two like fractions:
294/112 - 42/112 = 294 - 42/112 = 252/112
After reducing the fraction, the answer is 9/4
In mixed form: 21/4

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