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Subtract 9/40 from 1/2

1/2 - 9/40 is 11/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 40 is 40
  2. For the 1st fraction, since 2 × 20 = 40,
    1/2 = 1 × 20/2 × 20 = 20/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    9/40 = 9 × 1/40 × 1 = 9/40
  4. Subtract the two fractions:
    20/40 - 9/40 = 20 - 9/40 = 11/40

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