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Subtract 7/18 from 15/49

15/49 - 7/18 is -73/882.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 18 is 882

    Next, find the equivalent fraction of both fractional numbers with denominator 882
  2. For the 1st fraction, since 49 × 18 = 882,
    15/49 = 15 × 18/49 × 18 = 270/882
  3. Likewise, for the 2nd fraction, since 18 × 49 = 882,
    7/18 = 7 × 49/18 × 49 = 343/882
  4. Subtract the two like fractions:
    270/882 - 343/882 = 270 - 343/882 = -73/882

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