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Subtract 2/4 from 4/42

4/42 - 2/4 is -17/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    4/42 = 4 × 2/42 × 2 = 8/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    2/4 = 2 × 21/4 × 21 = 42/84
  4. Subtract the two like fractions:
    8/84 - 42/84 = 8 - 42/84 = -34/84
  5. After reducing the fraction, the answer is -17/42

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