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Subtract 50/90 from 12/25

12/25 - 50/90 is -17/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 90 is 450
  2. For the 1st fraction, since 25 × 18 = 450,
    12/25 = 12 × 18/25 × 18 = 216/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    50/90 = 50 × 5/90 × 5 = 250/450
  4. Subtract the two fractions:
    216/450 - 250/450 = 216 - 250/450 = -34/450
  5. After reducing the fraction, the answer is -17/225

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