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Subtract 42/9 from 9/5

1st number: 1 4/5, 2nd number: 4 6/9

9/5 - 42/9 is -43/15.

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,
    42/9 = 42 × 5/9 × 5 = 210/45
  4. Subtract the two fractions:
    81/45 - 210/45 = 81 - 210/45 = -129/45
  5. After reducing the fraction, the answer is -43/15

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