Answers

Subtract 4/84 from 5/81

5/81 - 4/84 is 8/567.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 84 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 81 × 28 = 2268,
   5/81 = 5 × 28/81 × 28 = 140/2268
3. Likewise, for the 2nd fraction, since 84 × 27 = 2268,
   4/84 = 4 × 27/84 × 27 = 108/2268
4. Subtract the two like fractions:
   140/2268 - 108/2268 = 140 - 108/2268 = 32/2268
5. After reducing the fraction, the answer is 8/567

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