Subtract 5/54 from 12/28, Solve 12/28

Subtract 5/54 from 12/28

12/28 - 5/54 is 127/378.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 28 × 27 = 756,
12/28 = 12 × 27/28 × 27 = 324/756
Likewise, for the 2nd fraction, since 54 × 14 = 756,
5/54 = 5 × 14/54 × 14 = 70/756
Subtract the two like fractions:
324/756 - 70/756 = 324 - 70/756 = 254/756
After reducing the fraction, the answer is 127/378

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