Subtract 8/12 from 81/27, Solve 3 0/27

Subtract 8/12 from 81/27

1^st number: 3 0/27, 2^nd number: 8/12

81/27 - 8/12 is 7/3.

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,
81/27 = 81 × 4/27 × 4 = 324/108
Likewise, for the 2nd fraction, since 12 × 9 = 108,
8/12 = 8 × 9/12 × 9 = 72/108
Subtract the two like fractions:
324/108 - 72/108 = 324 - 72/108 = 252/108
After reducing the fraction, the answer is 7/3
In mixed form: 21/3

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