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Subtract 9/72 from 6/84

6/84 - 9/72 is -3/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 72 is 504
  2. For the 1st fraction, since 84 × 6 = 504,
    6/84 = 6 × 6/84 × 6 = 36/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    9/72 = 9 × 7/72 × 7 = 63/504
  4. Subtract the two fractions:
    36/504 - 63/504 = 36 - 63/504 = -27/504
  5. After reducing the fraction, the answer is -3/56

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