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Add 9/3 and 30/21

1st number: 3 0/3, 2nd number: 1 9/21

9/3 + 30/21 is 31/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 21 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    9/3 = 9 × 7/3 × 7 = 63/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    30/21 = 30 × 1/21 × 1 = 30/21
  4. Add the two like fractions:
    63/21 + 30/21 = 63 + 30/21 = 93/21
  5. 93/21 simplified gives 31/7
  6. So, 9/3 + 30/21 = 31/7
    In mixed form: 43/7

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