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Subtract 9/4 from 5/15

1st number: 5/15, 2nd number: 2 1/4

5/15 - 9/4 is -23/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 4 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    5/15 = 5 × 4/15 × 4 = 20/60
  3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
    9/4 = 9 × 15/4 × 15 = 135/60
  4. Subtract the two fractions:
    20/60 - 135/60 = 20 - 135/60 = -115/60
  5. After reducing the fraction, the answer is -23/12

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