Subtract 12/30 from 8/7, Solve 1 1/7

Subtract 12/30 from 8/7

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

8/7 - 12/30 is 26/35.

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,
8/7 = 8 × 30/7 × 30 = 240/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210
Subtract the two like fractions:
240/210 - 84/210 = 240 - 84/210 = 156/210
After reducing the fraction, the answer is 26/35

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