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Subtract 35/84 from 28/72

28/72 - 35/84 is -1/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 84 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    28/72 = 28 × 7/72 × 7 = 196/504
  3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
    35/84 = 35 × 6/84 × 6 = 210/504
  4. Subtract the two like fractions:
    196/504 - 210/504 = 196 - 210/504 = -14/504
  5. After reducing the fraction, the answer is -1/36

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