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Subtract 8/4 from 3/10

1st number: 3/10, 2nd number: 2 0/4

3/10 - 8/4 is -17/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 4 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 10 × 2 = 20,
    3/10 = 3 × 2/10 × 2 = 6/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    8/4 = 8 × 5/4 × 5 = 40/20
  4. Subtract the two like fractions:
    6/20 - 40/20 = 6 - 40/20 = -34/20
  5. After reducing the fraction, the answer is -17/10

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