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Subtract 3/24 from 1/20

1/20 - 3/24 is -3/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 24 is 120
  2. For the 1st fraction, since 20 × 6 = 120,
    1/20 = 1 × 6/20 × 6 = 6/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    3/24 = 3 × 5/24 × 5 = 15/120
  4. Subtract the two fractions:
    6/120 - 15/120 = 6 - 15/120 = -9/120
  5. After reducing the fraction, the answer is -3/40

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