Subtract 56/24 from 16/42, Solve 16/42

Subtract 56/24 from 16/42

1^st number: 16/42, 2^nd number: 2 8/24

16/42 - 56/24 is -41/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
16/42 = 16 × 4/42 × 4 = 64/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
56/24 = 56 × 7/24 × 7 = 392/168
Subtract the two like fractions:
64/168 - 392/168 = 64 - 392/168 = -328/168
After reducing the fraction, the answer is -41/21

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