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Add 18/5 and 81/18

1st number: 3 3/5, 2nd number: 4 9/18

18/5 + 81/18 is 81/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 5 × 18 = 90,
    18/5 = 18 × 18/5 × 18 = 324/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    81/18 = 81 × 5/18 × 5 = 405/90
  4. Add the two like fractions:
    324/90 + 405/90 = 324 + 405/90 = 729/90
  5. 729/90 simplified gives 81/10
  6. So, 18/5 + 81/18 = 81/10
    In mixed form: 81/10

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