Answers

Subtract 4/81 from 3/16

3/16 - 4/81 is 179/1296.

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,
   3/16 = 3 × 81/16 × 81 = 243/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   4/81 = 4 × 16/81 × 16 = 64/1296
4. Subtract the two like fractions:
   243/1296 - 64/1296 = 243 - 64/1296 = 179/1296

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