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Add 4/8 and 42/81

4/8 + 42/81 is 55/54.

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,
    42/81 = 42 × 8/81 × 8 = 336/648
  4. Add the two like fractions:
    324/648 + 336/648 = 324 + 336/648 = 660/648
  5. 660/648 simplified gives 55/54
  6. So, 4/8 + 42/81 = 55/54
    In mixed form: 11/54

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