Subtract 12/27 from 35/42, Solve 35/42

Subtract 12/27 from 35/42

35/42 - 12/27 is 7/18.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
35/42 = 35 × 9/42 × 9 = 315/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
12/27 = 12 × 14/27 × 14 = 168/378
Subtract the two like fractions:
315/378 - 168/378 = 315 - 168/378 = 147/378
After reducing the fraction, the answer is 7/18

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