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Add 21/28 and 4/6

21/28 + 4/6 is 17/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 6 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 28 × 3 = 84,
    21/28 = 21 × 3/28 × 3 = 63/84
  3. Likewise, for the 2nd fraction, since 6 × 14 = 84,
    4/6 = 4 × 14/6 × 14 = 56/84
  4. Add the two like fractions:
    63/84 + 56/84 = 63 + 56/84 = 119/84
  5. 119/84 simplified gives 17/12
  6. So, 21/28 + 4/6 = 17/12
    In mixed form: 15/12

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