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Subtract 32/90 from 2/40

2/40 - 32/90 is -11/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    2/40 = 2 × 9/40 × 9 = 18/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    32/90 = 32 × 4/90 × 4 = 128/360
  4. Subtract the two like fractions:
    18/360 - 128/360 = 18 - 128/360 = -110/360
  5. After reducing the fraction, the answer is -11/36

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