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Subtract 40/54 from 18/25

18/25 - 40/54 is -14/675.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 54 is 1350
  2. For the 1st fraction, since 25 × 54 = 1350,
    18/25 = 18 × 54/25 × 54 = 972/1350
  3. Likewise, for the 2nd fraction, since 54 × 25 = 1350,
    40/54 = 40 × 25/54 × 25 = 1000/1350
  4. Subtract the two fractions:
    972/1350 - 1000/1350 = 972 - 1000/1350 = -28/1350
  5. After reducing the fraction, the answer is -14/675

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