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Add 16/28 and 3/21

16/28 + 3/21 is 5/7.

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,
    3/21 = 3 × 4/21 × 4 = 12/84
  4. Add the two fractions:
    48/84 + 12/84 = 48 + 12/84 = 60/84
  5. After reducing the fraction, the answer is 5/7

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