Answers

Subtract 20/12 from 14/81

1^st number: 14/81, 2^nd number: 1 8/12

14/81 - 20/12 is -121/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 12 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   14/81 = 14 × 4/81 × 4 = 56/324
3. Likewise, for the 2nd fraction, since 12 × 27 = 324,
   20/12 = 20 × 27/12 × 27 = 540/324
4. Subtract the two like fractions:
   56/324 - 540/324 = 56 - 540/324 = -484/324
5. After reducing the fraction, the answer is -121/81

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