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Subtract 18/9 from 9/5

1st number: 1 4/5, 2nd number: 2 0/9

9/5 - 18/9 is -1/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45
  2. For the 1st fraction, since 5 × 9 = 45,
    9/5 = 9 × 9/5 × 9 = 81/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    18/9 = 18 × 5/9 × 5 = 90/45
  4. Subtract the two fractions:
    81/45 - 90/45 = 81 - 90/45 = -9/45
  5. After reducing the fraction, the answer is -1/5

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