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Add 20/84 and 15/54

20/84 + 15/54 is 65/126.

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,
    20/84 = 20 × 9/84 × 9 = 180/756
  3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
    15/54 = 15 × 14/54 × 14 = 210/756
  4. Add the two fractions:
    180/756 + 210/756 = 180 + 210/756 = 390/756
  5. After reducing the fraction, the answer is 65/126

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