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Subtract 27/20 from 84/2

1st number: 42 0/2, 2nd number: 1 7/20

84/2 - 27/20 is 813/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 2 × 10 = 20,
    84/2 = 84 × 10/2 × 10 = 840/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    27/20 = 27 × 1/20 × 1 = 27/20
  4. Subtract the two like fractions:
    840/20 - 27/20 = 840 - 27/20 = 813/20
  5. In mixed form: 4013/20

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