Subtract 6/70 from 27/30, Solve 27/30

Subtract 6/70 from 27/30

27/30 - 6/70 is 57/70.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210
Subtract the two like fractions:
189/210 - 18/210 = 189 - 18/210 = 171/210
After reducing the fraction, the answer is 57/70

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