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Add 18/15 and 9/90

1st number: 1 3/15, 2nd number: 9/90

18/15 + 9/90 is 13/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 15 × 6 = 90,
    18/15 = 18 × 6/15 × 6 = 108/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    9/90 = 9 × 1/90 × 1 = 9/90
  4. Add the two like fractions:
    108/90 + 9/90 = 108 + 9/90 = 117/90
  5. 117/90 simplified gives 13/10
  6. So, 18/15 + 9/90 = 13/10
    In mixed form: 13/10

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