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Subtract 81/18 from 4/2

1st number: 2 0/2, 2nd number: 4 9/18

4/2 - 81/18 is -5/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 18 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 2 × 9 = 18,
    4/2 = 4 × 9/2 × 9 = 36/18
  3. Likewise, for the 2nd fraction, since 18 × 1 = 18,
    81/18 = 81 × 1/18 × 1 = 81/18
  4. Subtract the two like fractions:
    36/18 - 81/18 = 36 - 81/18 = -45/18
  5. After reducing the fraction, the answer is -5/2

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