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Subtract 80/63 from 50/90

1st number: 50/90, 2nd number: 1 17/63

50/90 - 80/63 is -5/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 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 63 × 10 = 630,
    80/63 = 80 × 10/63 × 10 = 800/630
  4. Subtract the two like fractions:
    350/630 - 800/630 = 350 - 800/630 = -450/630
  5. After reducing the fraction, the answer is -5/7

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