Answers

Subtract 10/15 from 50/81

50/81 - 10/15 is -4/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 15 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   50/81 = 50 × 5/81 × 5 = 250/405
3. Likewise, for the 2nd fraction, since 15 × 27 = 405,
   10/15 = 10 × 27/15 × 27 = 270/405
4. Subtract the two like fractions:
   250/405 - 270/405 = 250 - 270/405 = -20/405
5. After reducing the fraction, the answer is -4/81

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