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Add 81/18 and 18/90

1st number: 4 9/18, 2nd number: 18/90

81/18 + 18/90 is 47/10.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    81/18 = 81 × 5/18 × 5 = 405/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    18/90 = 18 × 1/90 × 1 = 18/90
  4. Add the two like fractions:
    405/90 + 18/90 = 405 + 18/90 = 423/90
  5. 423/90 simplified gives 47/10
  6. So, 81/18 + 18/90 = 47/10
    In mixed form: 47/10

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