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Add 4/8 and 90/81

1st number: 4/8, 2nd number: 1 9/81

4/8 + 90/81 is 29/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 81 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 8 × 81 = 648,
    4/8 = 4 × 81/8 × 81 = 324/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    90/81 = 90 × 8/81 × 8 = 720/648
  4. Add the two like fractions:
    324/648 + 720/648 = 324 + 720/648 = 1044/648
  5. 1044/648 simplified gives 29/18
  6. So, 4/8 + 90/81 = 29/18
    In mixed form: 111/18

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