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Add 21/28 and 21/9

1st number: 21/28, 2nd number: 2 3/9

21/28 + 21/9 is 37/12.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    21/28 = 21 × 9/28 × 9 = 189/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    21/9 = 21 × 28/9 × 28 = 588/252
  4. Add the two like fractions:
    189/252 + 588/252 = 189 + 588/252 = 777/252
  5. 777/252 simplified gives 37/12
  6. So, 21/28 + 21/9 = 37/12
    In mixed form: 31/12

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