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Add 81/20 and 5/84

1st number: 4 1/20, 2nd number: 5/84

81/20 + 5/84 is 863/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    81/20 = 81 × 21/20 × 21 = 1701/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    5/84 = 5 × 5/84 × 5 = 25/420
  4. Add the two like fractions:
    1701/420 + 25/420 = 1701 + 25/420 = 1726/420
  5. 1726/420 simplified gives 863/210
  6. So, 81/20 + 5/84 = 863/210
    In mixed form: 423/210

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