Answers

Subtract 16/81 from 12/5

1^st number: 2 2/5, 2^nd number: 16/81

12/5 - 16/81 is 892/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   12/5 = 12 × 81/5 × 81 = 972/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   16/81 = 16 × 5/81 × 5 = 80/405
4. Subtract the two like fractions:
   972/405 - 80/405 = 972 - 80/405 = 892/405
5. In mixed form: 282/405

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