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Subtract 4/5 from 2/4

2/4 - 4/5 is -3/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    2/4 = 2 × 5/4 × 5 = 10/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    4/5 = 4 × 4/5 × 4 = 16/20
  4. Subtract the two like fractions:
    10/20 - 16/20 = 10 - 16/20 = -6/20
  5. After reducing the fraction, the answer is -3/10

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