Answers

Subtract 30/81 from 8/27

8/27 - 30/81 is -2/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 27 × 3 = 81,
   8/27 = 8 × 3/27 × 3 = 24/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   30/81 = 30 × 1/81 × 1 = 30/81
4. Subtract the two like fractions:
   24/81 - 30/81 = 24 - 30/81 = -6/81
5. After reducing the fraction, the answer is -2/27

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