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Subtract 25/9 from 10/18

1st number: 10/18, 2nd number: 2 7/9

10/18 - 25/9 is -20/9.

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,
    10/18 = 10 × 1/18 × 1 = 10/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    25/9 = 25 × 2/9 × 2 = 50/18
  4. Subtract the two fractions:
    10/18 - 50/18 = 10 - 50/18 = -40/18
  5. After reducing the fraction, the answer is -20/9

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