Subtract 80/7 from 6/30, Solve 6/30

Subtract 80/7 from 6/30

1^st number: 6/30, 2^nd number: 11 3/7

6/30 - 80/7 is -393/35.

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,
6/30 = 6 × 7/30 × 7 = 42/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
80/7 = 80 × 30/7 × 30 = 2400/210
Subtract the two like fractions:
42/210 - 2400/210 = 42 - 2400/210 = -2358/210
After reducing the fraction, the answer is -393/35

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