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Add 90/80 and 80/9

1st number: 1 10/80, 2nd number: 8 8/9

90/80 + 80/9 is 721/72.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    90/80 = 90 × 9/80 × 9 = 810/720
  3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
    80/9 = 80 × 80/9 × 80 = 6400/720
  4. Add the two like fractions:
    810/720 + 6400/720 = 810 + 6400/720 = 7210/720
  5. 7210/720 simplified gives 721/72
  6. So, 90/80 + 80/9 = 721/72
    In mixed form: 101/72

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