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Subtract 5/72 from 9/42

9/42 - 5/72 is 73/504.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 42 × 12 = 504,
    9/42 = 9 × 12/42 × 12 = 108/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    5/72 = 5 × 7/72 × 7 = 35/504
  4. Subtract the two like fractions:
    108/504 - 35/504 = 108 - 35/504 = 73/504

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