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Add 80/7 and 84/9

1st number: 11 3/7, 2nd number: 9 3/9

80/7 + 84/9 is 436/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 7 × 9 = 63,
    80/7 = 80 × 9/7 × 9 = 720/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    84/9 = 84 × 7/9 × 7 = 588/63
  4. Add the two like fractions:
    720/63 + 588/63 = 720 + 588/63 = 1308/63
  5. 1308/63 simplified gives 436/21
  6. So, 80/7 + 84/9 = 436/21
    In mixed form: 2016/21

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