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Subtract 3/81 from 40/2

1st number: 20 0/2, 2nd number: 3/81

40/2 - 3/81 is 539/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 81 is 162

    Next, find the equivalent fraction of both fractional numbers with denominator 162
  2. For the 1st fraction, since 2 × 81 = 162,
    40/2 = 40 × 81/2 × 81 = 3240/162
  3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
    3/81 = 3 × 2/81 × 2 = 6/162
  4. Subtract the two like fractions:
    3240/162 - 6/162 = 3240 - 6/162 = 3234/162
  5. After reducing the fraction, the answer is 539/27
  6. In mixed form: 1926/27

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