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Add 81/36 and 6/90

1st number: 2 9/36, 2nd number: 6/90

81/36 + 6/90 is 139/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    81/36 = 81 × 5/36 × 5 = 405/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    6/90 = 6 × 2/90 × 2 = 12/180
  4. Add the two like fractions:
    405/180 + 12/180 = 405 + 12/180 = 417/180
  5. 417/180 simplified gives 139/60
  6. So, 81/36 + 6/90 = 139/60
    In mixed form: 219/60

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