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Add 81/9 and 54/42

1st number: 9 0/9, 2nd number: 1 12/42

81/9 + 54/42 is 72/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 42 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 9 × 14 = 126,
    81/9 = 81 × 14/9 × 14 = 1134/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    54/42 = 54 × 3/42 × 3 = 162/126
  4. Add the two like fractions:
    1134/126 + 162/126 = 1134 + 162/126 = 1296/126
  5. 1296/126 simplified gives 72/7
  6. So, 81/9 + 54/42 = 72/7
    In mixed form: 102/7

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