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Subtract 21/27 from 6/49

6/49 - 21/27 is -289/441.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 27 is 1323

    Next, find the equivalent fraction of both fractional numbers with denominator 1323
  2. For the 1st fraction, since 49 × 27 = 1323,
    6/49 = 6 × 27/49 × 27 = 162/1323
  3. Likewise, for the 2nd fraction, since 27 × 49 = 1323,
    21/27 = 21 × 49/27 × 49 = 1029/1323
  4. Subtract the two like fractions:
    162/1323 - 1029/1323 = 162 - 1029/1323 = -867/1323
  5. After reducing the fraction, the answer is -289/441

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