Subtract 48/42 from 27/12, Solve 2 3/12

Subtract 48/42 from 27/12

1^st number: 2 3/12, 2^nd number: 1 6/42

27/12 - 48/42 is 31/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
27/12 = 27 × 7/12 × 7 = 189/84
Likewise, for the 2nd fraction, since 42 × 2 = 84,
48/42 = 48 × 2/42 × 2 = 96/84
Subtract the two like fractions:
189/84 - 96/84 = 189 - 96/84 = 93/84
After reducing the fraction, the answer is 31/28
In mixed form: 13/28

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