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Add 8/12 and 81/90

8/12 + 81/90 is 47/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    8/12 = 8 × 15/12 × 15 = 120/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    81/90 = 81 × 2/90 × 2 = 162/180
  4. Add the two like fractions:
    120/180 + 162/180 = 120 + 162/180 = 282/180
  5. 282/180 simplified gives 47/30
  6. So, 8/12 + 81/90 = 47/30
    In mixed form: 117/30

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