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Subtract 21/9 from 84/75

1st number: 1 9/75, 2nd number: 2 3/9

84/75 - 21/9 is -91/75.

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,
    84/75 = 84 × 3/75 × 3 = 252/225
  3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
    21/9 = 21 × 25/9 × 25 = 525/225
  4. Subtract the two fractions:
    252/225 - 525/225 = 252 - 525/225 = -273/225
  5. After reducing the fraction, the answer is -91/75

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