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Subtract 2/72 from 5/21

5/21 - 2/72 is 53/252.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 72 is 504
  2. For the 1st fraction, since 21 × 24 = 504,
    5/21 = 5 × 24/21 × 24 = 120/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    2/72 = 2 × 7/72 × 7 = 14/504
  4. Subtract the two fractions:
    120/504 - 14/504 = 120 - 14/504 = 106/504
  5. After reducing the fraction, the answer is 53/252

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