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Add 18/15 and 42/9

1st number: 1 3/15, 2nd number: 4 6/9

18/15 + 42/9 is 88/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 9 is 45
  2. For the 1st fraction, since 15 × 3 = 45,
    18/15 = 18 × 3/15 × 3 = 54/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    42/9 = 42 × 5/9 × 5 = 210/45
  4. Add the two fractions:
    54/45 + 210/45 = 54 + 210/45 = 264/45
  5. After reducing the fraction, the answer is 88/15
  6. In mixed form: 513/15

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