Subtract 5/81 from 10/12, Solve 10/12

Subtract 5/81 from 10/12

10/12 - 5/81 is 125/162.

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,
10/12 = 10 × 27/12 × 27 = 270/324
Likewise, for the 2nd fraction, since 81 × 4 = 324,
5/81 = 5 × 4/81 × 4 = 20/324
Subtract the two like fractions:
270/324 - 20/324 = 270 - 20/324 = 250/324
After reducing the fraction, the answer is 125/162

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