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Subtract 48/40 from 20/36

1st number: 20/36, 2nd number: 1 8/40

20/36 - 48/40 is -29/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 40 is 360
  2. For the 1st fraction, since 36 × 10 = 360,
    20/36 = 20 × 10/36 × 10 = 200/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    48/40 = 48 × 9/40 × 9 = 432/360
  4. Subtract the two fractions:
    200/360 - 432/360 = 200 - 432/360 = -232/360
  5. After reducing the fraction, the answer is -29/45

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