Answers

Subtract 42/81 from 4/27

4/27 - 42/81 is -10/27.

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,
   4/27 = 4 × 3/27 × 3 = 12/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   42/81 = 42 × 1/81 × 1 = 42/81
4. Subtract the two like fractions:
   12/81 - 42/81 = 12 - 42/81 = -30/81
5. After reducing the fraction, the answer is -10/27

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