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Add 3/12 and 3/42

3/12 + 3/42 is 9/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 42 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    3/12 = 3 × 7/12 × 7 = 21/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    3/42 = 3 × 2/42 × 2 = 6/84
  4. Add the two fractions:
    21/84 + 6/84 = 21 + 6/84 = 27/84
  5. After reducing the fraction, the answer is 9/28

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