Subtract 80/12 from 18/27, Solve 18/27

Subtract 80/12 from 18/27

1^st number: 18/27, 2^nd number: 6 8/12

18/27 - 80/12 is -6/1.

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,
18/27 = 18 × 4/27 × 4 = 72/108
Likewise, for the 2nd fraction, since 12 × 9 = 108,
80/12 = 80 × 9/12 × 9 = 720/108
Subtract the two like fractions:
72/108 - 720/108 = 72 - 720/108 = -648/108
After reducing the fraction, the answer is -6/1

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