Answers

Subtract 24/15 from 25/81

1^st number: 25/81, 2^nd number: 1 9/15

25/81 - 24/15 is -523/405.

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,
   25/81 = 25 × 5/81 × 5 = 125/405
3. Likewise, for the 2nd fraction, since 15 × 27 = 405,
   24/15 = 24 × 27/15 × 27 = 648/405
4. Subtract the two like fractions:
   125/405 - 648/405 = 125 - 648/405 = -523/405

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