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Add 21/12 and 42/14

1st number: 1 9/12, 2nd number: 3 0/14

21/12 + 42/14 is 19/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 14 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    21/12 = 21 × 7/12 × 7 = 147/84
  3. Likewise, for the 2nd fraction, since 14 × 6 = 84,
    42/14 = 42 × 6/14 × 6 = 252/84
  4. Add the two like fractions:
    147/84 + 252/84 = 147 + 252/84 = 399/84
  5. 399/84 simplified gives 19/4
  6. So, 21/12 + 42/14 = 19/4
    In mixed form: 43/4

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