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Add 4/21 and 3/84

4/21 + 3/84 is 19/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 84 is 84
  2. For the 1st fraction, since 21 × 4 = 84,
    4/21 = 4 × 4/21 × 4 = 16/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    3/84 = 3 × 1/84 × 1 = 3/84
  4. Add the two fractions:
    16/84 + 3/84 = 16 + 3/84 = 19/84

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