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Add 21/84 and 36/9

1st number: 21/84, 2nd number: 4 0/9

21/84 + 36/9 is 17/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 9 is 252
  2. For the 1st fraction, since 84 × 3 = 252,
    21/84 = 21 × 3/84 × 3 = 63/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    36/9 = 36 × 28/9 × 28 = 1008/252
  4. Add the two fractions:
    63/252 + 1008/252 = 63 + 1008/252 = 1071/252
  5. 1071/252 simplified gives 17/4
  6. So, 21/84 + 36/9 = 17/4
    In mixed form: 41/4

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