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Add 18/9 and 9/90

1st number: 2 0/9, 2nd number: 9/90

18/9 + 9/90 is 21/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 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 90 × 1 = 90,
    9/90 = 9 × 1/90 × 1 = 9/90
  4. Add the two like fractions:
    180/90 + 9/90 = 180 + 9/90 = 189/90
  5. 189/90 simplified gives 21/10
  6. So, 18/9 + 9/90 = 21/10
    In mixed form: 21/10

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