Answers

Subtract 9/81 from 81/75

1^st number: 1 6/75, 2^nd number: 9/81

81/75 - 9/81 is 218/225.

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,
   81/75 = 81 × 27/75 × 27 = 2187/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   9/81 = 9 × 25/81 × 25 = 225/2025
4. Subtract the two like fractions:
   2187/2025 - 225/2025 = 2187 - 225/2025 = 1962/2025
5. After reducing the fraction, the answer is 218/225

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