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Subtract 80/21 from 50/18

1st number: 2 14/18, 2nd number: 3 17/21

50/18 - 80/21 is -65/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    50/18 = 50 × 7/18 × 7 = 350/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    80/21 = 80 × 6/21 × 6 = 480/126
  4. Subtract the two fractions:
    350/126 - 480/126 = 350 - 480/126 = -130/126
  5. After reducing the fraction, the answer is -65/63

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