Subtract 42/12 from 54/2, Solve 27 0/2

Subtract 42/12 from 54/2

1^st number: 27 0/2, 2^nd number: 3 6/12

54/2 - 42/12 is 47/2.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 2 × 6 = 12,
54/2 = 54 × 6/2 × 6 = 324/12
Likewise, for the 2nd fraction, since 12 × 1 = 12,
42/12 = 42 × 1/12 × 1 = 42/12
Subtract the two like fractions:
324/12 - 42/12 = 324 - 42/12 = 282/12
After reducing the fraction, the answer is 47/2
In mixed form: 231/2

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