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Add 21/60 and 36/84

21/60 + 36/84 is 109/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    21/60 = 21 × 7/60 × 7 = 147/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    36/84 = 36 × 5/84 × 5 = 180/420
  4. Add the two like fractions:
    147/420 + 180/420 = 147 + 180/420 = 327/420
  5. 327/420 simplified gives 109/140
  6. So, 21/60 + 36/84 = 109/140

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