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Add 16/28 and 5/21

16/28 + 5/21 is 17/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 21 is 84
  2. For the 1st fraction, since 28 × 3 = 84,
    16/28 = 16 × 3/28 × 3 = 48/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    5/21 = 5 × 4/21 × 4 = 20/84
  4. Add the two fractions:
    48/84 + 20/84 = 48 + 20/84 = 68/84
  5. After reducing the fraction, the answer is 17/21

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