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Add 36/9 and 20/84

1st number: 4 0/9, 2nd number: 20/84

36/9 + 20/84 is 89/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 9 × 28 = 252,
    36/9 = 36 × 28/9 × 28 = 1008/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    20/84 = 20 × 3/84 × 3 = 60/252
  4. Add the two like fractions:
    1008/252 + 60/252 = 1008 + 60/252 = 1068/252
  5. 1068/252 simplified gives 89/21
  6. So, 36/9 + 20/84 = 89/21
    In mixed form: 45/21

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