Answers

Subtract 35/54 from 25/42

25/42 - 35/54 is -10/189.

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,
   25/42 = 25 × 9/42 × 9 = 225/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   35/54 = 35 × 7/54 × 7 = 245/378
4. Subtract the two like fractions:
   225/378 - 245/378 = 225 - 245/378 = -20/378
5. After reducing the fraction, the answer is -10/189

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