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Add 30/21 and 3/7

1st number: 1 9/21, 2nd number: 3/7

30/21 + 3/7 is 13/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21
  2. For the 1st fraction, since 21 × 1 = 21,
    30/21 = 30 × 1/21 × 1 = 30/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    3/7 = 3 × 3/7 × 3 = 9/21
  4. Add the two fractions:
    30/21 + 9/21 = 30 + 9/21 = 39/21
  5. After reducing the fraction, the answer is 13/7
  6. In mixed form: 16/7

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