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Subtract 8/9 from 1/2

1/2 - 8/9 is -7/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 9 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 2 × 9 = 18,
    1/2 = 1 × 9/2 × 9 = 9/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    8/9 = 8 × 2/9 × 2 = 16/18
  4. Subtract the two like fractions:
    9/18 - 16/18 = 9 - 16/18 = -7/18

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