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Add 28/40 and 5/9

28/40 + 5/9 is 113/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    28/40 = 28 × 9/40 × 9 = 252/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    5/9 = 5 × 40/9 × 40 = 200/360
  4. Add the two fractions:
    252/360 + 200/360 = 252 + 200/360 = 452/360
  5. After reducing the fraction, the answer is 113/90
  6. In mixed form: 123/90

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