Subtract 42/30 from 14/7, Solve 2 0/7

Subtract 42/30 from 14/7

1^st number: 2 0/7, 2^nd number: 1 12/30

14/7 - 42/30 is 3/5.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 7 × 30 = 210,
14/7 = 14 × 30/7 × 30 = 420/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210
Subtract the two like fractions:
420/210 - 294/210 = 420 - 294/210 = 126/210
After reducing the fraction, the answer is 3/5

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