Subtract 10/7 from 35/30, Solve 1 5/30

Subtract 10/7 from 35/30

1^st number: 1 5/30, 2^nd number: 1 3/7

35/30 - 10/7 is -11/42.

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,
35/30 = 35 × 7/30 × 7 = 245/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
10/7 = 10 × 30/7 × 30 = 300/210
Subtract the two like fractions:
245/210 - 300/210 = 245 - 300/210 = -55/210
After reducing the fraction, the answer is -11/42

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