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Add 21/14 and 18/12

1st number: 1 7/14, 2nd number: 1 6/12

21/14 + 18/12 is 3/1.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 14 × 6 = 84,
    21/14 = 21 × 6/14 × 6 = 126/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    18/12 = 18 × 7/12 × 7 = 126/84
  4. Add the two like fractions:
    126/84 + 126/84 = 126 + 126/84 = 252/84
  5. 252/84 simplified gives 3/1
  6. So, 21/14 + 18/12 = 3/1

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