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Subtract 1/60 from 21/42

21/42 - 1/60 is 29/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 420
  2. For the 1st fraction, since 42 × 10 = 420,
    21/42 = 21 × 10/42 × 10 = 210/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    1/60 = 1 × 7/60 × 7 = 7/420
  4. Subtract the two fractions:
    210/420 - 7/420 = 210 - 7/420 = 203/420
  5. After reducing the fraction, the answer is 29/60

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