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Subtract 4/20 from 20/18

1st number: 1 2/18, 2nd number: 4/20

20/18 - 4/20 is 41/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    20/18 = 20 × 10/18 × 10 = 200/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    4/20 = 4 × 9/20 × 9 = 36/180
  4. Subtract the two like fractions:
    200/180 - 36/180 = 200 - 36/180 = 164/180
  5. After reducing the fraction, the answer is 41/45

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