Subtract 18/14 from 54/64, Solve 54/64

Subtract 18/14 from 54/64

1^st number: 54/64, 2^nd number: 1 4/14

54/64 - 18/14 is -99/224.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 14 is 448

Next, find the equivalent fraction of both fractional numbers with denominator 448
For the 1st fraction, since 64 × 7 = 448,
54/64 = 54 × 7/64 × 7 = 378/448
Likewise, for the 2nd fraction, since 14 × 32 = 448,
18/14 = 18 × 32/14 × 32 = 576/448
Subtract the two like fractions:
378/448 - 576/448 = 378 - 576/448 = -198/448
After reducing the fraction, the answer is -99/224

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