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Subtract 90/20 from 1/50

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

1/50 - 90/20 is -112/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 20 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 50 × 2 = 100,
    1/50 = 1 × 2/50 × 2 = 2/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    90/20 = 90 × 5/20 × 5 = 450/100
  4. Subtract the two like fractions:
    2/100 - 450/100 = 2 - 450/100 = -448/100
  5. After reducing the fraction, the answer is -112/25

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