Answers

Subtract 50/54 from 8/42

8/42 - 50/54 is -139/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   8/42 = 8 × 9/42 × 9 = 72/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   50/54 = 50 × 7/54 × 7 = 350/378
4. Subtract the two like fractions:
   72/378 - 350/378 = 72 - 350/378 = -278/378
5. After reducing the fraction, the answer is -139/189

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