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Add 81/45 and 42/9

1st number: 1 36/45, 2nd number: 4 6/9

81/45 + 42/9 is 97/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 9 is 45
  2. For the 1st fraction, since 45 × 1 = 45,
    81/45 = 81 × 1/45 × 1 = 81/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    42/9 = 42 × 5/9 × 5 = 210/45
  4. Add the two fractions:
    81/45 + 210/45 = 81 + 210/45 = 291/45
  5. After reducing the fraction, the answer is 97/15
  6. In mixed form: 67/15

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