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Add 1/2 and 9/21

1/2 + 9/21 is 13/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 2 × 21 = 42,
    1/2 = 1 × 21/2 × 21 = 21/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    9/21 = 9 × 2/21 × 2 = 18/42
  4. Add the two like fractions:
    21/42 + 18/42 = 21 + 18/42 = 39/42
  5. 39/42 simplified gives 13/14
  6. So, 1/2 + 9/21 = 13/14

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