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Add 21/16 and 5/9

1st number: 1 5/16, 2nd number: 5/9

21/16 + 5/9 is 269/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 9 is 144
  2. For the 1st fraction, since 16 × 9 = 144,
    21/16 = 21 × 9/16 × 9 = 189/144
  3. Likewise, for the 2nd fraction, since 9 × 16 = 144,
    5/9 = 5 × 16/9 × 16 = 80/144
  4. Add the two fractions:
    189/144 + 80/144 = 189 + 80/144 = 269/144
  5. In mixed form: 1125/144

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