Subtract 5/81 from 2/10, Solve 2/10

Subtract 5/81 from 2/10

2/10 - 5/81 is 56/405.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810

Next, find the equivalent fraction of both fractional numbers with denominator 810
For the 1st fraction, since 10 × 81 = 810,
2/10 = 2 × 81/10 × 81 = 162/810
Likewise, for the 2nd fraction, since 81 × 10 = 810,
5/81 = 5 × 10/81 × 10 = 50/810
Subtract the two like fractions:
162/810 - 50/810 = 162 - 50/810 = 112/810
After reducing the fraction, the answer is 56/405

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