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Subtract 9/49 from 18/40

18/40 - 9/49 is 261/980.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 49 is 1960
  2. For the 1st fraction, since 40 × 49 = 1960,
    18/40 = 18 × 49/40 × 49 = 882/1960
  3. Likewise, for the 2nd fraction, since 49 × 40 = 1960,
    9/49 = 9 × 40/49 × 40 = 360/1960
  4. Subtract the two fractions:
    882/1960 - 360/1960 = 882 - 360/1960 = 522/1960
  5. After reducing the fraction, the answer is 261/980

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