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Add 30/8 and 40/81

1st number: 3 6/8, 2nd number: 40/81

30/8 + 40/81 is 1375/324.

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,
    30/8 = 30 × 81/8 × 81 = 2430/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    40/81 = 40 × 8/81 × 8 = 320/648
  4. Add the two like fractions:
    2430/648 + 320/648 = 2430 + 320/648 = 2750/648
  5. 2750/648 simplified gives 1375/324
  6. So, 30/8 + 40/81 = 1375/324
    In mixed form: 479/324

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