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Add 25/84 and 21/9

1st number: 25/84, 2nd number: 2 3/9

25/84 + 21/9 is 221/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 9 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 84 × 3 = 252,
    25/84 = 25 × 3/84 × 3 = 75/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    21/9 = 21 × 28/9 × 28 = 588/252
  4. Add the two like fractions:
    75/252 + 588/252 = 75 + 588/252 = 663/252
  5. 663/252 simplified gives 221/84
  6. So, 25/84 + 21/9 = 221/84
    In mixed form: 253/84

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