Subtract 6/81 from 50/12, Solve 4 2/12

Subtract 6/81 from 50/12

1^st number: 4 2/12, 2^nd number: 6/81

50/12 - 6/81 is 221/54.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324

Next, find the equivalent fraction of both fractional numbers with denominator 324
For the 1st fraction, since 12 × 27 = 324,
50/12 = 50 × 27/12 × 27 = 1350/324
Likewise, for the 2nd fraction, since 81 × 4 = 324,
6/81 = 6 × 4/81 × 4 = 24/324
Subtract the two like fractions:
1350/324 - 24/324 = 1350 - 24/324 = 1326/324
After reducing the fraction, the answer is 221/54
In mixed form: 45/54

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