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Add 3/21 and 28/9

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

3/21 + 28/9 is 205/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    3/21 = 3 × 3/21 × 3 = 9/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    28/9 = 28 × 7/9 × 7 = 196/63
  4. Add the two like fractions:
    9/63 + 196/63 = 9 + 196/63 = 205/63
  5. So, 3/21 + 28/9 = 205/63
    In mixed form: 316/63

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