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Add 21/60 and 25/84

21/60 + 25/84 is 68/105.

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,
    25/84 = 25 × 5/84 × 5 = 125/420
  4. Add the two like fractions:
    147/420 + 125/420 = 147 + 125/420 = 272/420
  5. 272/420 simplified gives 68/105
  6. So, 21/60 + 25/84 = 68/105

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