Answers

Subtract 8/25 from 4/81

4/81 - 8/25 is -548/2025.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 25 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 81 × 25 = 2025,
   4/81 = 4 × 25/81 × 25 = 100/2025
3. Likewise, for the 2nd fraction, since 25 × 81 = 2025,
   8/25 = 8 × 81/25 × 81 = 648/2025
4. Subtract the two like fractions:
   100/2025 - 648/2025 = 100 - 648/2025 = -548/2025

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