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Add 28/30 and 9/60

28/30 + 9/60 is 13/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 60 is 60
  2. For the 1st fraction, since 30 × 2 = 60,
    28/30 = 28 × 2/30 × 2 = 56/60
  3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
    9/60 = 9 × 1/60 × 1 = 9/60
  4. Add the two fractions:
    56/60 + 9/60 = 56 + 9/60 = 65/60
  5. After reducing the fraction, the answer is 13/12
  6. In mixed form: 11/12

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