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Subtract 12/15 from 25/50

25/50 - 12/15 is -3/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 15 is 150

    Next, find the equivalent fraction of both fractional numbers with denominator 150
  2. For the 1st fraction, since 50 × 3 = 150,
    25/50 = 25 × 3/50 × 3 = 75/150
  3. Likewise, for the 2nd fraction, since 15 × 10 = 150,
    12/15 = 12 × 10/15 × 10 = 120/150
  4. Subtract the two like fractions:
    75/150 - 120/150 = 75 - 120/150 = -45/150
  5. After reducing the fraction, the answer is -3/10

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