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Subtract 7/80 from 8/9

8/9 - 7/80 is 577/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 9 × 80 = 720,
    8/9 = 8 × 80/9 × 80 = 640/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    7/80 = 7 × 9/80 × 9 = 63/720
  4. Subtract the two like fractions:
    640/720 - 63/720 = 640 - 63/720 = 577/720

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