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Add 9/21 and 2/12

9/21 + 2/12 is 25/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    9/21 = 9 × 4/21 × 4 = 36/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    2/12 = 2 × 7/12 × 7 = 14/84
  4. Add the two like fractions:
    36/84 + 14/84 = 36 + 14/84 = 50/84
  5. 50/84 simplified gives 25/42
  6. So, 9/21 + 2/12 = 25/42

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