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Add 18/20 and 84/9

1st number: 18/20, 2nd number: 9 3/9

18/20 + 84/9 is 307/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    18/20 = 18 × 9/20 × 9 = 162/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    84/9 = 84 × 20/9 × 20 = 1680/180
  4. Add the two like fractions:
    162/180 + 1680/180 = 162 + 1680/180 = 1842/180
  5. 1842/180 simplified gives 307/30
  6. So, 18/20 + 84/9 = 307/30
    In mixed form: 107/30

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