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Subtract 10/45 from 10/20

10/20 - 10/45 is 5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    10/20 = 10 × 9/20 × 9 = 90/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    10/45 = 10 × 4/45 × 4 = 40/180
  4. Subtract the two like fractions:
    90/180 - 40/180 = 90 - 40/180 = 50/180
  5. After reducing the fraction, the answer is 5/18

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