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Add 84/56 and 9/15

1st number: 1 28/56, 2nd number: 9/15

84/56 + 9/15 is 21/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 15 is 840
  2. For the 1st fraction, since 56 × 15 = 840,
    84/56 = 84 × 15/56 × 15 = 1260/840
  3. Likewise, for the 2nd fraction, since 15 × 56 = 840,
    9/15 = 9 × 56/15 × 56 = 504/840
  4. Add the two fractions:
    1260/840 + 504/840 = 1260 + 504/840 = 1764/840
  5. 1764/840 simplified gives 21/10
  6. So, 84/56 + 9/15 = 21/10
    In mixed form: 21/10

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