Answers

Subtract 2/81 from 4/16

4/16 - 2/81 is 73/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 16 × 81 = 1296,
   4/16 = 4 × 81/16 × 81 = 324/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   2/81 = 2 × 16/81 × 16 = 32/1296
4. Subtract the two like fractions:
   324/1296 - 32/1296 = 324 - 32/1296 = 292/1296
5. After reducing the fraction, the answer is 73/324

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