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Subtract 1/9 from 1/2

1/2 - 1/9 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,
    1/9 = 1 × 2/9 × 2 = 2/18
  4. Subtract the two like fractions:
    9/18 - 2/18 = 9 - 2/18 = 7/18

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