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Add 16/21 and 9/42

16/21 + 9/42 is 41/42.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    16/21 = 16 × 2/21 × 2 = 32/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    9/42 = 9 × 1/42 × 1 = 9/42
  4. Add the two like fractions:
    32/42 + 9/42 = 32 + 9/42 = 41/42
  5. So, 16/21 + 9/42 = 41/42

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