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Subtract 30/40 from 8/32

8/32 - 30/40 is -1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 40 is 160

    Next, find the equivalent fraction of both fractional numbers with denominator 160
  2. For the 1st fraction, since 32 × 5 = 160,
    8/32 = 8 × 5/32 × 5 = 40/160
  3. Likewise, for the 2nd fraction, since 40 × 4 = 160,
    30/40 = 30 × 4/40 × 4 = 120/160
  4. Subtract the two like fractions:
    40/160 - 120/160 = 40 - 120/160 = -80/160
  5. After reducing the fraction, the answer is -1/2

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