Subtract 30/63 from 27/12, Solve 2 3/12

Subtract 30/63 from 27/12

1^st number: 2 3/12, 2^nd number: 30/63

27/12 - 30/63 is 149/84.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
27/12 = 27 × 21/12 × 21 = 567/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
30/63 = 30 × 4/63 × 4 = 120/252
Subtract the two like fractions:
567/252 - 120/252 = 567 - 120/252 = 447/252
After reducing the fraction, the answer is 149/84
In mixed form: 165/84

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