Subtract 72/70 from 10/12, Solve 10/12

Subtract 72/70 from 10/12

1^st number: 10/12, 2^nd number: 1 2/70

10/12 - 72/70 is -41/210.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
10/12 = 10 × 35/12 × 35 = 350/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
72/70 = 72 × 6/70 × 6 = 432/420
Subtract the two like fractions:
350/420 - 432/420 = 350 - 432/420 = -82/420
After reducing the fraction, the answer is -41/210

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