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Subtract 6/9 from 3/6

3/6 - 6/9 is -1/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 9 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 6 × 3 = 18,
    3/6 = 3 × 3/6 × 3 = 9/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    6/9 = 6 × 2/9 × 2 = 12/18
  4. Subtract the two like fractions:
    9/18 - 12/18 = 9 - 12/18 = -3/18
  5. After reducing the fraction, the answer is -1/6

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