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Add 12/30 and 4/84

12/30 + 4/84 is 47/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 84 is 420
  2. For the 1st fraction, since 30 × 14 = 420,
    12/30 = 12 × 14/30 × 14 = 168/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    4/84 = 4 × 5/84 × 5 = 20/420
  4. Add the two fractions:
    168/420 + 20/420 = 168 + 20/420 = 188/420
  5. After reducing the fraction, the answer is 47/105

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