Subtract 63/54 from 12/14, Solve 12/14

Subtract 63/54 from 12/14

1^st number: 12/14, 2^nd number: 1 9/54

12/14 - 63/54 is -13/42.

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,
63/54 = 63 × 7/54 × 7 = 441/378
Subtract the two like fractions:
324/378 - 441/378 = 324 - 441/378 = -117/378
After reducing the fraction, the answer is -13/42

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad