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Subtract 9/5 from 5/4

1st number: 1 1/4, 2nd number: 1 4/5

5/4 - 9/5 is -11/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20
  2. For the 1st fraction, since 4 × 5 = 20,
    5/4 = 5 × 5/4 × 5 = 25/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    9/5 = 9 × 4/5 × 4 = 36/20
  4. Subtract the two fractions:
    25/20 - 36/20 = 25 - 36/20 = -11/20

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