Subtract 30/27 from 4/12, Solve 4/12

Subtract 30/27 from 4/12

1^st number: 4/12, 2^nd number: 1 3/27

4/12 - 30/27 is -7/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
4/12 = 4 × 9/12 × 9 = 36/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
30/27 = 30 × 4/27 × 4 = 120/108
Subtract the two like fractions:
36/108 - 120/108 = 36 - 120/108 = -84/108
After reducing the fraction, the answer is -7/9

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