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Add 20/21 and 36/84

20/21 + 36/84 is 29/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    20/21 = 20 × 4/21 × 4 = 80/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    36/84 = 36 × 1/84 × 1 = 36/84
  4. Add the two like fractions:
    80/84 + 36/84 = 80 + 36/84 = 116/84
  5. 116/84 simplified gives 29/21
  6. So, 20/21 + 36/84 = 29/21
    In mixed form: 18/21

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