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Subtract 18/27 from 45/75

45/75 - 18/27 is -1/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 27 is 675
  2. For the 1st fraction, since 75 × 9 = 675,
    45/75 = 45 × 9/75 × 9 = 405/675
  3. Likewise, for the 2nd fraction, since 27 × 25 = 675,
    18/27 = 18 × 25/27 × 25 = 450/675
  4. Subtract the two fractions:
    405/675 - 450/675 = 405 - 450/675 = -45/675
  5. After reducing the fraction, the answer is -1/15

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