Subtract 28/6 from 5/81, Solve 5/81

Subtract 28/6 from 5/81

1^st number: 5/81, 2^nd number: 4 4/6

5/81 - 28/6 is -373/81.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 6 is 162

Next, find the equivalent fraction of both fractional numbers with denominator 162
For the 1st fraction, since 81 × 2 = 162,
5/81 = 5 × 2/81 × 2 = 10/162
Likewise, for the 2nd fraction, since 6 × 27 = 162,
28/6 = 28 × 27/6 × 27 = 756/162
Subtract the two like fractions:
10/162 - 756/162 = 10 - 756/162 = -746/162
After reducing the fraction, the answer is -373/81

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