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Add 10/14 and 9/21

10/14 + 9/21 is 8/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 21 is 42
  2. For the 1st fraction, since 14 × 3 = 42,
    10/14 = 10 × 3/14 × 3 = 30/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    9/21 = 9 × 2/21 × 2 = 18/42
  4. Add the two fractions:
    30/42 + 18/42 = 30 + 18/42 = 48/42
  5. 48/42 simplified gives 8/7
  6. So, 10/14 + 9/21 = 8/7
    In mixed form: 11/7

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