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Add 21/28 and 7/14

21/28 + 7/14 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 14 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 28 × 1 = 28,
    21/28 = 21 × 1/28 × 1 = 21/28
  3. Likewise, for the 2nd fraction, since 14 × 2 = 28,
    7/14 = 7 × 2/14 × 2 = 14/28
  4. Add the two like fractions:
    21/28 + 14/28 = 21 + 14/28 = 35/28
  5. 35/28 simplified gives 5/4
  6. So, 21/28 + 7/14 = 5/4
    In mixed form: 11/4

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