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Subtract 16/18 from 15/25

15/25 - 16/18 is -13/45.

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,
    15/25 = 15 × 18/25 × 18 = 270/450
  3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
    16/18 = 16 × 25/18 × 25 = 400/450
  4. Subtract the two fractions:
    270/450 - 400/450 = 270 - 400/450 = -130/450
  5. After reducing the fraction, the answer is -13/45

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