Answers

Subtract 40/27 from 84/81

1^st number: 1 3/81, 2^nd number: 1 13/27

84/81 - 40/27 is -4/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 27 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   84/81 = 84 × 1/81 × 1 = 84/81
3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
   40/27 = 40 × 3/27 × 3 = 120/81
4. Subtract the two like fractions:
   84/81 - 120/81 = 84 - 120/81 = -36/81
5. After reducing the fraction, the answer is -4/9

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