Subtract 42/15 from 2/54, Solve 2/54

Subtract 42/15 from 2/54

1^st number: 2/54, 2^nd number: 2 12/15

2/54 - 42/15 is -373/135.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 54 × 5 = 270,
2/54 = 2 × 5/54 × 5 = 10/270
Likewise, for the 2nd fraction, since 15 × 18 = 270,
42/15 = 42 × 18/15 × 18 = 756/270
Subtract the two like fractions:
10/270 - 756/270 = 10 - 756/270 = -746/270
After reducing the fraction, the answer is -373/135

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