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Subtract 5/40 from 36/18

1st number: 2 0/18, 2nd number: 5/40

36/18 - 5/40 is 15/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    36/18 = 36 × 20/18 × 20 = 720/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    5/40 = 5 × 9/40 × 9 = 45/360
  4. Subtract the two like fractions:
    720/360 - 45/360 = 720 - 45/360 = 675/360
  5. After reducing the fraction, the answer is 15/8
  6. In mixed form: 17/8

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