Subtract 42/54 from 28/12, Solve 2 4/12

Subtract 42/54 from 28/12

1^st number: 2 4/12, 2^nd number: 42/54

28/12 - 42/54 is 14/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
28/12 = 28 × 9/12 × 9 = 252/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
42/54 = 42 × 2/54 × 2 = 84/108
Subtract the two like fractions:
252/108 - 84/108 = 252 - 84/108 = 168/108
After reducing the fraction, the answer is 14/9
In mixed form: 15/9

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