Subtract 56/54 from 6/15, Solve 6/15

Subtract 56/54 from 6/15

1^st number: 6/15, 2^nd number: 1 2/54

6/15 - 56/54 is -86/135.

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

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 15 × 18 = 270,
6/15 = 6 × 18/15 × 18 = 108/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
56/54 = 56 × 5/54 × 5 = 280/270
Subtract the two like fractions:
108/270 - 280/270 = 108 - 280/270 = -172/270
After reducing the fraction, the answer is -86/135

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