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Add 6/21 and 18/9

1st number: 6/21, 2nd number: 2 0/9

6/21 + 18/9 is 16/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    6/21 = 6 × 3/21 × 3 = 18/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    18/9 = 18 × 7/9 × 7 = 126/63
  4. Add the two fractions:
    18/63 + 126/63 = 18 + 126/63 = 144/63
  5. 144/63 simplified gives 16/7
  6. So, 6/21 + 18/9 = 16/7
    In mixed form: 22/7

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