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Subtract 21/63 from 6/10

6/10 - 21/63 is 4/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 63 is 630
  2. For the 1st fraction, since 10 × 63 = 630,
    6/10 = 6 × 63/10 × 63 = 378/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    21/63 = 21 × 10/63 × 10 = 210/630
  4. Subtract the two fractions:
    378/630 - 210/630 = 378 - 210/630 = 168/630
  5. After reducing the fraction, the answer is 4/15

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