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Subtract 25/12 from 2/42

1st number: 2/42, 2nd number: 2 1/12

2/42 - 25/12 is -57/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 12 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 12 × 7 = 84,
    25/12 = 25 × 7/12 × 7 = 175/84
  4. Subtract the two like fractions:
    4/84 - 175/84 = 4 - 175/84 = -171/84
  5. After reducing the fraction, the answer is -57/28

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