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Add 4/21 and 10/12

4/21 + 10/12 is 43/42.

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,
    4/21 = 4 × 4/21 × 4 = 16/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    10/12 = 10 × 7/12 × 7 = 70/84
  4. Add the two like fractions:
    16/84 + 70/84 = 16 + 70/84 = 86/84
  5. 86/84 simplified gives 43/42
  6. So, 4/21 + 10/12 = 43/42
    In mixed form: 11/42

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