Answers

Subtract 25/84 from 2/42

2/42 - 25/84 is -1/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   2/42 = 2 × 2/42 × 2 = 4/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   25/84 = 25 × 1/84 × 1 = 25/84
4. Subtract the two like fractions:
   4/84 - 25/84 = 4 - 25/84 = -21/84
5. After reducing the fraction, the answer is -1/4

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