Answers

Subtract 15/50 from 8/81

8/81 - 15/50 is -163/810.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 50 is 4050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4050
2. For the 1st fraction, since 81 × 50 = 4050,
   8/81 = 8 × 50/81 × 50 = 400/4050
3. Likewise, for the 2nd fraction, since 50 × 81 = 4050,
   15/50 = 15 × 81/50 × 81 = 1215/4050
4. Subtract the two like fractions:
   400/4050 - 1215/4050 = 400 - 1215/4050 = -815/4050
5. After reducing the fraction, the answer is -163/810

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