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Subtract 9/28 from 42/84

42/84 - 9/28 is 5/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 28 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 84 × 1 = 84,
    42/84 = 42 × 1/84 × 1 = 42/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    9/28 = 9 × 3/28 × 3 = 27/84
  4. Subtract the two like fractions:
    42/84 - 27/84 = 42 - 27/84 = 15/84
  5. After reducing the fraction, the answer is 5/28

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