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Add 3/21 and 1/60

3/21 + 1/60 is 67/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    3/21 = 3 × 20/21 × 20 = 60/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    1/60 = 1 × 7/60 × 7 = 7/420
  4. Add the two fractions:
    60/420 + 7/420 = 60 + 7/420 = 67/420

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