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Subtract 9/5 from 7/2

1st number: 3 1/2, 2nd number: 1 4/5

7/2 - 9/5 is 17/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 5 is 10
  2. For the 1st fraction, since 2 × 5 = 10,
    7/2 = 7 × 5/2 × 5 = 35/10
  3. Likewise, for the 2nd fraction, since 5 × 2 = 10,
    9/5 = 9 × 2/5 × 2 = 18/10
  4. Subtract the two fractions:
    35/10 - 18/10 = 35 - 18/10 = 17/10
  5. In mixed form: 17/10

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