Answers

Subtract 15/81 from 3/75

3/75 - 15/81 is -98/675.

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,
   3/75 = 3 × 27/75 × 27 = 81/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   15/81 = 15 × 25/81 × 25 = 375/2025
4. Subtract the two like fractions:
   81/2025 - 375/2025 = 81 - 375/2025 = -294/2025
5. After reducing the fraction, the answer is -98/675

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