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Subtract 4/5 from 20/18

1st number: 1 2/18, 2nd number: 4/5

20/18 - 4/5 is 14/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 5 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    20/18 = 20 × 5/18 × 5 = 100/90
  3. Likewise, for the 2nd fraction, since 5 × 18 = 90,
    4/5 = 4 × 18/5 × 18 = 72/90
  4. Subtract the two like fractions:
    100/90 - 72/90 = 100 - 72/90 = 28/90
  5. After reducing the fraction, the answer is 14/45

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