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Subtract 7/9 from 5/18

5/18 - 7/9 is -1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 9 is 18
  2. For the 1st fraction, since 18 × 1 = 18,
    5/18 = 5 × 1/18 × 1 = 5/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    7/9 = 7 × 2/9 × 2 = 14/18
  4. Subtract the two fractions:
    5/18 - 14/18 = 5 - 14/18 = -9/18
  5. After reducing the fraction, the answer is -1/2

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