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Add 81/18 and 18/45

1st number: 4 9/18, 2nd number: 18/45

81/18 + 18/45 is 49/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 45 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 45 × 2 = 90,
    18/45 = 18 × 2/45 × 2 = 36/90
  4. Add the two like fractions:
    405/90 + 36/90 = 405 + 36/90 = 441/90
  5. 441/90 simplified gives 49/10
  6. So, 81/18 + 18/45 = 49/10
    In mixed form: 49/10

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