Answers

Subtract 5/81 from 7/75

7/75 - 5/81 is 64/2025.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 75 × 27 = 2025,
   7/75 = 7 × 27/75 × 27 = 189/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   5/81 = 5 × 25/81 × 25 = 125/2025
4. Subtract the two like fractions:
   189/2025 - 125/2025 = 189 - 125/2025 = 64/2025

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