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Add 3/42 and 16/21

3/42 + 16/21 is 5/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    3/42 = 3 × 1/42 × 1 = 3/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    16/21 = 16 × 2/21 × 2 = 32/42
  4. Add the two like fractions:
    3/42 + 32/42 = 3 + 32/42 = 35/42
  5. 35/42 simplified gives 5/6
  6. So, 3/42 + 16/21 = 5/6

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