Subtract 1/7 from 42/30, Solve 1 12/30

Subtract 1/7 from 42/30

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

42/30 - 1/7 is 44/35.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 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 7 × 30 = 210,
1/7 = 1 × 30/7 × 30 = 30/210
Subtract the two like fractions:
294/210 - 30/210 = 294 - 30/210 = 264/210
After reducing the fraction, the answer is 44/35
In mixed form: 19/35

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