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Add 8/12 and 9/90

8/12 + 9/90 is 23/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 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,
    9/90 = 9 × 2/90 × 2 = 18/180
  4. Add the two fractions:
    120/180 + 18/180 = 120 + 18/180 = 138/180
  5. After reducing the fraction, the answer is 23/30

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