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Subtract 20/63 from 2/18

2/18 - 20/63 is -13/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 63 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    2/18 = 2 × 7/18 × 7 = 14/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    20/63 = 20 × 2/63 × 2 = 40/126
  4. Subtract the two fractions:
    14/126 - 40/126 = 14 - 40/126 = -26/126
  5. After reducing the fraction, the answer is -13/63

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