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Subtract 49/63 from 5/8

5/8 - 49/63 is -11/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 63 is 504
  2. For the 1st fraction, since 8 × 63 = 504,
    5/8 = 5 × 63/8 × 63 = 315/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    49/63 = 49 × 8/63 × 8 = 392/504
  4. Subtract the two fractions:
    315/504 - 392/504 = 315 - 392/504 = -77/504
  5. After reducing the fraction, the answer is -11/72

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