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Subtract 18/90 from 20/2

1st number: 10 0/2, 2nd number: 18/90

20/2 - 18/90 is 49/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 2 × 45 = 90,
    20/2 = 20 × 45/2 × 45 = 900/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    18/90 = 18 × 1/90 × 1 = 18/90
  4. Subtract the two like fractions:
    900/90 - 18/90 = 900 - 18/90 = 882/90
  5. After reducing the fraction, the answer is 49/5
  6. In mixed form: 94/5

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