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Subtract 18/9 from 81/75

1st number: 1 6/75, 2nd number: 2 0/9

81/75 - 18/9 is -23/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 9 is 225
  2. For the 1st fraction, since 75 × 3 = 225,
    81/75 = 81 × 3/75 × 3 = 243/225
  3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
    18/9 = 18 × 25/9 × 25 = 450/225
  4. Subtract the two fractions:
    243/225 - 450/225 = 243 - 450/225 = -207/225
  5. After reducing the fraction, the answer is -23/25

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