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Subtract 80/70 from 50/63

1st number: 50/63, 2nd number: 1 10/70

50/63 - 80/70 is -22/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 63 × 10 = 630,
    50/63 = 50 × 10/63 × 10 = 500/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    80/70 = 80 × 9/70 × 9 = 720/630
  4. Subtract the two like fractions:
    500/630 - 720/630 = 500 - 720/630 = -220/630
  5. After reducing the fraction, the answer is -22/63

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