Answers

Subtract 24/60 from 20/81

20/81 - 24/60 is -62/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 60 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 81 × 20 = 1620,
   20/81 = 20 × 20/81 × 20 = 400/1620
3. Likewise, for the 2nd fraction, since 60 × 27 = 1620,
   24/60 = 24 × 27/60 × 27 = 648/1620
4. Subtract the two like fractions:
   400/1620 - 648/1620 = 400 - 648/1620 = -248/1620
5. After reducing the fraction, the answer is -62/405

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