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Subtract 9/18 from 9/25

9/25 - 9/18 is -7/50.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 18 is 450
  2. For the 1st fraction, since 25 × 18 = 450,
    9/25 = 9 × 18/25 × 18 = 162/450
  3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
    9/18 = 9 × 25/18 × 25 = 225/450
  4. Subtract the two fractions:
    162/450 - 225/450 = 162 - 225/450 = -63/450
  5. After reducing the fraction, the answer is -7/50

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