Subtract 12/30 from 56/42, Solve 1 14/42

Subtract 12/30 from 56/42

1^st number: 1 14/42, 2^nd number: 12/30

56/42 - 12/30 is 14/15.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
56/42 = 56 × 5/42 × 5 = 280/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210
Subtract the two like fractions:
280/210 - 84/210 = 280 - 84/210 = 196/210
After reducing the fraction, the answer is 14/15

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