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Subtract 21/63 from 70/8

1st number: 8 6/8, 2nd number: 21/63

70/8 - 21/63 is 101/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 8 × 63 = 504,
    70/8 = 70 × 63/8 × 63 = 4410/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    21/63 = 21 × 8/63 × 8 = 168/504
  4. Subtract the two like fractions:
    4410/504 - 168/504 = 4410 - 168/504 = 4242/504
  5. After reducing the fraction, the answer is 101/12
  6. In mixed form: 85/12

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