Subtract 5/70 from 12/36, Solve 12/36

Subtract 5/70 from 12/36

12/36 - 5/70 is 11/42.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 36 × 35 = 1260,
12/36 = 12 × 35/36 × 35 = 420/1260
Likewise, for the 2nd fraction, since 70 × 18 = 1260,
5/70 = 5 × 18/70 × 18 = 90/1260
Subtract the two like fractions:
420/1260 - 90/1260 = 420 - 90/1260 = 330/1260
After reducing the fraction, the answer is 11/42

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