Answers

Subtract 84/81 from 8/18

1^st number: 8/18, 2^nd number: 1 3/81

8/18 - 84/81 is -16/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   8/18 = 8 × 9/18 × 9 = 72/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   84/81 = 84 × 2/81 × 2 = 168/162
4. Subtract the two like fractions:
   72/162 - 168/162 = 72 - 168/162 = -96/162
5. After reducing the fraction, the answer is -16/27

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