Subtract 12/15 from 35/70, Solve 35/70

Subtract 12/15 from 35/70

35/70 - 12/15 is -3/10.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
35/70 = 35 × 3/70 × 3 = 105/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
12/15 = 12 × 14/15 × 14 = 168/210
Subtract the two like fractions:
105/210 - 168/210 = 105 - 168/210 = -63/210
After reducing the fraction, the answer is -3/10

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