Subtract 12/3 from 9/70, Solve 9/70

Subtract 12/3 from 9/70

1^st number: 9/70, 2^nd number: 4 0/3

9/70 - 12/3 is -271/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
9/70 = 9 × 3/70 × 3 = 27/210
Likewise, for the 2nd fraction, since 3 × 70 = 210,
12/3 = 12 × 70/3 × 70 = 840/210
Subtract the two like fractions:
27/210 - 840/210 = 27 - 840/210 = -813/210
After reducing the fraction, the answer is -271/70

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