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Add 3/84 and 4/5

3/84 + 4/5 is 117/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 5 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    3/84 = 3 × 5/84 × 5 = 15/420
  3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
    4/5 = 4 × 84/5 × 84 = 336/420
  4. Add the two like fractions:
    15/420 + 336/420 = 15 + 336/420 = 351/420
  5. 351/420 simplified gives 117/140
  6. So, 3/84 + 4/5 = 117/140

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