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Subtract 5/18 from 3/20

3/20 - 5/18 is -23/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    3/20 = 3 × 9/20 × 9 = 27/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    5/18 = 5 × 10/18 × 10 = 50/180
  4. Subtract the two fractions:
    27/180 - 50/180 = 27 - 50/180 = -23/180

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