Subtract 32/21 from 6/30, Solve 6/30

Subtract 32/21 from 6/30

1^st number: 6/30, 2^nd number: 1 11/21

6/30 - 32/21 is -139/105.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 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 21 × 10 = 210,
32/21 = 32 × 10/21 × 10 = 320/210
Subtract the two like fractions:
42/210 - 320/210 = 42 - 320/210 = -278/210
After reducing the fraction, the answer is -139/105

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