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Subtract 80/7 from 50/90

1st number: 50/90, 2nd number: 11 3/7

50/90 - 80/7 is -685/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 7 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    50/90 = 50 × 7/90 × 7 = 350/630
  3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
    80/7 = 80 × 90/7 × 90 = 7200/630
  4. Subtract the two fractions:
    350/630 - 7200/630 = 350 - 7200/630 = -6850/630
  5. After reducing the fraction, the answer is -685/63

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