Subtract 25/70 from 27/30, Solve 27/30

Subtract 25/70 from 27/30

27/30 - 25/70 is 19/35.

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,
25/70 = 25 × 3/70 × 3 = 75/210
Subtract the two like fractions:
189/210 - 75/210 = 189 - 75/210 = 114/210
After reducing the fraction, the answer is 19/35

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