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Subtract 16/81 from 9/5

1st number: 1 4/5, 2nd number: 16/81

9/5 - 16/81 is 649/405.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 5 × 81 = 405,
    9/5 = 9 × 81/5 × 81 = 729/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    16/81 = 16 × 5/81 × 5 = 80/405
  4. Subtract the two like fractions:
    729/405 - 80/405 = 729 - 80/405 = 649/405
  5. In mixed form: 1244/405

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