Answers

Subtract 56/81 from 6/15

6/15 - 56/81 is -118/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 15 × 27 = 405,
   6/15 = 6 × 27/15 × 27 = 162/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   56/81 = 56 × 5/81 × 5 = 280/405
4. Subtract the two like fractions:
   162/405 - 280/405 = 162 - 280/405 = -118/405

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