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Add 21/9 and 9/28

1st number: 2 3/9, 2nd number: 9/28

21/9 + 9/28 is 223/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 28 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 9 × 28 = 252,
    21/9 = 21 × 28/9 × 28 = 588/252
  3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
    9/28 = 9 × 9/28 × 9 = 81/252
  4. Add the two like fractions:
    588/252 + 81/252 = 588 + 81/252 = 669/252
  5. 669/252 simplified gives 223/84
  6. So, 21/9 + 9/28 = 223/84
    In mixed form: 255/84

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