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Add 45/12 and 21/56

1st number: 3 9/12, 2nd number: 21/56

45/12 + 21/56 is 33/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 56 is 168
  2. For the 1st fraction, since 12 × 14 = 168,
    45/12 = 45 × 14/12 × 14 = 630/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    21/56 = 21 × 3/56 × 3 = 63/168
  4. Add the two fractions:
    630/168 + 63/168 = 630 + 63/168 = 693/168
  5. After reducing the fraction, the answer is 33/8
  6. In mixed form: 41/8

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