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Add 81/2 and 20/84

1st number: 40 1/2, 2nd number: 20/84

81/2 + 20/84 is 1711/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 2 × 42 = 84,
    81/2 = 81 × 42/2 × 42 = 3402/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    20/84 = 20 × 1/84 × 1 = 20/84
  4. Add the two like fractions:
    3402/84 + 20/84 = 3402 + 20/84 = 3422/84
  5. 3422/84 simplified gives 1711/42
  6. So, 81/2 + 20/84 = 1711/42
    In mixed form: 4031/42

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