Subtract 18/12 from 1/27, Solve 1/27

Subtract 18/12 from 1/27

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

1/27 - 18/12 is -79/54.

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

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 27 × 4 = 108,
1/27 = 1 × 4/27 × 4 = 4/108
Likewise, for the 2nd fraction, since 12 × 9 = 108,
18/12 = 18 × 9/12 × 9 = 162/108
Subtract the two like fractions:
4/108 - 162/108 = 4 - 162/108 = -158/108
After reducing the fraction, the answer is -79/54

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