Answers

Subtract 75/81 from 2/10

2/10 - 75/81 is -98/135.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 10 × 81 = 810,
   2/10 = 2 × 81/10 × 81 = 162/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   75/81 = 75 × 10/81 × 10 = 750/810
4. Subtract the two like fractions:
   162/810 - 750/810 = 162 - 750/810 = -588/810
5. After reducing the fraction, the answer is -98/135

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