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Add 18/9 and 12/10

1st number: 2 0/9, 2nd number: 1 2/10

18/9 + 12/10 is 16/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 10 is 90
  2. For the 1st fraction, since 9 × 10 = 90,
    18/9 = 18 × 10/9 × 10 = 180/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    12/10 = 12 × 9/10 × 9 = 108/90
  4. Add the two fractions:
    180/90 + 108/90 = 180 + 108/90 = 288/90
  5. 288/90 simplified gives 16/5
  6. So, 18/9 + 12/10 = 16/5
    In mixed form: 31/5

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