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Subtract 7/9 from 9/72

9/72 - 7/9 is -47/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 9 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 72 × 1 = 72,
    9/72 = 9 × 1/72 × 1 = 9/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    7/9 = 7 × 8/9 × 8 = 56/72
  4. Subtract the two like fractions:
    9/72 - 56/72 = 9 - 56/72 = -47/72

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