Answers

Subtract 10/45 from 2/81

2/81 - 10/45 is -16/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 45 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   2/81 = 2 × 5/81 × 5 = 10/405
3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
   10/45 = 10 × 9/45 × 9 = 90/405
4. Subtract the two like fractions:
   10/405 - 90/405 = 10 - 90/405 = -80/405
5. After reducing the fraction, the answer is -16/81

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