Answers

Subtract 56/81 from 9/45

9/45 - 56/81 is -199/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 45 × 9 = 405,
   9/45 = 9 × 9/45 × 9 = 81/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   56/81 = 56 × 5/81 × 5 = 280/405
4. Subtract the two like fractions:
   81/405 - 280/405 = 81 - 280/405 = -199/405

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