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Subtract 21/9 from 1/25

1st number: 1/25, 2nd number: 2 3/9

1/25 - 21/9 is -172/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 9 is 225
  2. For the 1st fraction, since 25 × 9 = 225,
    1/25 = 1 × 9/25 × 9 = 9/225
  3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
    21/9 = 21 × 25/9 × 25 = 525/225
  4. Subtract the two fractions:
    9/225 - 525/225 = 9 - 525/225 = -516/225
  5. After reducing the fraction, the answer is -172/75

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