Subtract 28/16 from 56/54, Solve 1 2/54

Subtract 28/16 from 56/54

1^st number: 1 2/54, 2^nd number: 1 12/16

56/54 - 28/16 is -77/108.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432

Next, find the equivalent fraction of both fractional numbers with denominator 432
For the 1st fraction, since 54 × 8 = 432,
56/54 = 56 × 8/54 × 8 = 448/432
Likewise, for the 2nd fraction, since 16 × 27 = 432,
28/16 = 28 × 27/16 × 27 = 756/432
Subtract the two like fractions:
448/432 - 756/432 = 448 - 756/432 = -308/432
After reducing the fraction, the answer is -77/108

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