Answers

Subtract 4/81 from 28/48

28/48 - 4/81 is 173/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 48 × 27 = 1296,
   28/48 = 28 × 27/48 × 27 = 756/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   4/81 = 4 × 16/81 × 16 = 64/1296
4. Subtract the two like fractions:
   756/1296 - 64/1296 = 756 - 64/1296 = 692/1296
5. After reducing the fraction, the answer is 173/324

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