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Subtract 42/5 from 3/2

1st number: 1 1/2, 2nd number: 8 2/5

3/2 - 42/5 is -69/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 5 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 2 × 5 = 10,
    3/2 = 3 × 5/2 × 5 = 15/10
  3. Likewise, for the 2nd fraction, since 5 × 2 = 10,
    42/5 = 42 × 2/5 × 2 = 84/10
  4. Subtract the two like fractions:
    15/10 - 84/10 = 15 - 84/10 = -69/10

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