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Subtract 90/20 from 50/63

1st number: 50/63, 2nd number: 4 10/20

50/63 - 90/20 is -467/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 20 is 1260
  2. For the 1st fraction, since 63 × 20 = 1260,
    50/63 = 50 × 20/63 × 20 = 1000/1260
  3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
    90/20 = 90 × 63/20 × 63 = 5670/1260
  4. Subtract the two fractions:
    1000/1260 - 5670/1260 = 1000 - 5670/1260 = -4670/1260
  5. After reducing the fraction, the answer is -467/126

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