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Subtract 81/84 from 84/4

1st number: 21 0/4, 2nd number: 81/84

84/4 - 81/84 is 561/28.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    84/4 = 84 × 21/4 × 21 = 1764/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    81/84 = 81 × 1/84 × 1 = 81/84
  4. Subtract the two like fractions:
    1764/84 - 81/84 = 1764 - 81/84 = 1683/84
  5. After reducing the fraction, the answer is 561/28
  6. In mixed form: 201/28

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