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Add 81/9 and 42/5

1st number: 9 0/9, 2nd number: 8 2/5

81/9 + 42/5 is 87/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 5 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 9 × 5 = 45,
    81/9 = 81 × 5/9 × 5 = 405/45
  3. Likewise, for the 2nd fraction, since 5 × 9 = 45,
    42/5 = 42 × 9/5 × 9 = 378/45
  4. Add the two like fractions:
    405/45 + 378/45 = 405 + 378/45 = 783/45
  5. 783/45 simplified gives 87/5
  6. So, 81/9 + 42/5 = 87/5
    In mixed form: 172/5

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