Answers

Subtract 28/81 from 7/14

7/14 - 28/81 is 25/162.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 81 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 14 × 81 = 1134,
   7/14 = 7 × 81/14 × 81 = 567/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   28/81 = 28 × 14/81 × 14 = 392/1134
4. Subtract the two like fractions:
   567/1134 - 392/1134 = 567 - 392/1134 = 175/1134
5. After reducing the fraction, the answer is 25/162

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