Answers

Subtract 9/14 from 42/81

42/81 - 9/14 is -47/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 14 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 81 × 14 = 1134,
   42/81 = 42 × 14/81 × 14 = 588/1134
3. Likewise, for the 2nd fraction, since 14 × 81 = 1134,
   9/14 = 9 × 81/14 × 81 = 729/1134
4. Subtract the two like fractions:
   588/1134 - 729/1134 = 588 - 729/1134 = -141/1134
5. After reducing the fraction, the answer is -47/378

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