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Subtract 10/45 from 3/40

3/40 - 10/45 is -53/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    3/40 = 3 × 9/40 × 9 = 27/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    10/45 = 10 × 8/45 × 8 = 80/360
  4. Subtract the two like fractions:
    27/360 - 80/360 = 27 - 80/360 = -53/360

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