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Add 28/40 and 15/9

1st number: 28/40, 2nd number: 1 6/9

28/40 + 15/9 is 71/30.

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,
    15/9 = 15 × 40/9 × 40 = 600/360
  4. Add the two fractions:
    252/360 + 600/360 = 252 + 600/360 = 852/360
  5. After reducing the fraction, the answer is 71/30
  6. In mixed form: 211/30

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