Subtract 2/27 from 20/12, Solve 1 8/12

Subtract 2/27 from 20/12

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

20/12 - 2/27 is 43/27.

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

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
20/12 = 20 × 9/12 × 9 = 180/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
2/27 = 2 × 4/27 × 4 = 8/108
Subtract the two like fractions:
180/108 - 8/108 = 180 - 8/108 = 172/108
After reducing the fraction, the answer is 43/27
In mixed form: 116/27

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