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Add 48/60 and 3/21

48/60 + 3/21 is 33/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    48/60 = 48 × 7/60 × 7 = 336/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    3/21 = 3 × 20/21 × 20 = 60/420
  4. Add the two like fractions:
    336/420 + 60/420 = 336 + 60/420 = 396/420
  5. 396/420 simplified gives 33/35
  6. So, 48/60 + 3/21 = 33/35

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