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Subtract 12/5 from 7/15

1st number: 7/15, 2nd number: 2 2/5

7/15 - 12/5 is -29/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 5 is 15

    Next, find the equivalent fraction of both fractional numbers with denominator 15
  2. For the 1st fraction, since 15 × 1 = 15,
    7/15 = 7 × 1/15 × 1 = 7/15
  3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
    12/5 = 12 × 3/5 × 3 = 36/15
  4. Subtract the two like fractions:
    7/15 - 36/15 = 7 - 36/15 = -29/15

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