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Add 81/42 and 18/8

1st number: 1 39/42, 2nd number: 2 2/8

81/42 + 18/8 is 117/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 42 × 4 = 168,
    81/42 = 81 × 4/42 × 4 = 324/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    18/8 = 18 × 21/8 × 21 = 378/168
  4. Add the two like fractions:
    324/168 + 378/168 = 324 + 378/168 = 702/168
  5. 702/168 simplified gives 117/28
  6. So, 81/42 + 18/8 = 117/28
    In mixed form: 45/28

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