Subtract 9/14 from 42/30, Solve 1 12/30

Subtract 9/14 from 42/30

1^st number: 1 12/30, 2^nd number: 9/14

42/30 - 9/14 is 53/70.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210
Likewise, for the 2nd fraction, since 14 × 15 = 210,
9/14 = 9 × 15/14 × 15 = 135/210
Subtract the two like fractions:
294/210 - 135/210 = 294 - 135/210 = 159/210
After reducing the fraction, the answer is 53/70

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