Subtract 30/54 from 12/14, Solve 12/14

Subtract 30/54 from 12/14

12/14 - 30/54 is 19/63.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 14 × 27 = 378,
12/14 = 12 × 27/14 × 27 = 324/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
30/54 = 30 × 7/54 × 7 = 210/378
Subtract the two like fractions:
324/378 - 210/378 = 324 - 210/378 = 114/378
After reducing the fraction, the answer is 19/63

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