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Add 84/10 and 54/12

1st number: 8 4/10, 2nd number: 4 6/12

84/10 + 54/12 is 129/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 12 is 60
  2. For the 1st fraction, since 10 × 6 = 60,
    84/10 = 84 × 6/10 × 6 = 504/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    54/12 = 54 × 5/12 × 5 = 270/60
  4. Add the two fractions:
    504/60 + 270/60 = 504 + 270/60 = 774/60
  5. After reducing the fraction, the answer is 129/10
  6. In mixed form: 129/10

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