Subtract 12/4 from 1/54, Solve 1/54

Subtract 12/4 from 1/54

1^st number: 1/54, 2^nd number: 3 0/4

1/54 - 12/4 is -161/54.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 54 × 2 = 108,
1/54 = 1 × 2/54 × 2 = 2/108
Likewise, for the 2nd fraction, since 4 × 27 = 108,
12/4 = 12 × 27/4 × 27 = 324/108
Subtract the two like fractions:
2/108 - 324/108 = 2 - 324/108 = -322/108
After reducing the fraction, the answer is -161/54

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