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Subtract 3/90 from 15/75

15/75 - 3/90 is 1/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 75 × 6 = 450,
    15/75 = 15 × 6/75 × 6 = 90/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    3/90 = 3 × 5/90 × 5 = 15/450
  4. Subtract the two like fractions:
    90/450 - 15/450 = 90 - 15/450 = 75/450
  5. After reducing the fraction, the answer is 1/6

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