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Add 20/9 and 21/4

1st number: 2 2/9, 2nd number: 5 1/4

20/9 + 21/4 is 269/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 4 is 36
  2. For the 1st fraction, since 9 × 4 = 36,
    20/9 = 20 × 4/9 × 4 = 80/36
  3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
    21/4 = 21 × 9/4 × 9 = 189/36
  4. Add the two fractions:
    80/36 + 189/36 = 80 + 189/36 = 269/36
  5. In mixed form: 717/36

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