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Add 3/84 and 36/45

3/84 + 36/45 is 117/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 45 is 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    3/84 = 3 × 15/84 × 15 = 45/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    36/45 = 36 × 28/45 × 28 = 1008/1260
  4. Add the two fractions:
    45/1260 + 1008/1260 = 45 + 1008/1260 = 1053/1260
  5. After reducing the fraction, the answer is 117/140

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