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Subtract 1/12 from 5/42

5/42 - 1/12 is 1/28.

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,
    5/42 = 5 × 2/42 × 2 = 10/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    1/12 = 1 × 7/12 × 7 = 7/84
  4. Subtract the two like fractions:
    10/84 - 7/84 = 10 - 7/84 = 3/84
  5. After reducing the fraction, the answer is 1/28

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