Subtract 30/42 from 6/5, Solve 1 1/5

Subtract 30/42 from 6/5

1^st number: 1 1/5, 2^nd number: 30/42

6/5 - 30/42 is 17/35.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
6/5 = 6 × 42/5 × 42 = 252/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210
Subtract the two like fractions:
252/210 - 150/210 = 252 - 150/210 = 102/210
After reducing the fraction, the answer is 17/35

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