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Add 12/84 and 90/54

1st number: 12/84, 2nd number: 1 36/54

12/84 + 90/54 is 38/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 54 is 756
  2. For the 1st fraction, since 84 × 9 = 756,
    12/84 = 12 × 9/84 × 9 = 108/756
  3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
    90/54 = 90 × 14/54 × 14 = 1260/756
  4. Add the two fractions:
    108/756 + 1260/756 = 108 + 1260/756 = 1368/756
  5. 1368/756 simplified gives 38/21
  6. So, 12/84 + 90/54 = 38/21
    In mixed form: 117/21

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