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Add 9/21 and 25/60

9/21 + 25/60 is 71/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    9/21 = 9 × 20/21 × 20 = 180/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    25/60 = 25 × 7/60 × 7 = 175/420
  4. Add the two like fractions:
    180/420 + 175/420 = 180 + 175/420 = 355/420
  5. 355/420 simplified gives 71/84
  6. So, 9/21 + 25/60 = 71/84

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