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Subtract 80/36 from 56/90

1st number: 56/90, 2nd number: 2 8/36

56/90 - 80/36 is -8/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    56/90 = 56 × 2/90 × 2 = 112/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    80/36 = 80 × 5/36 × 5 = 400/180
  4. Subtract the two like fractions:
    112/180 - 400/180 = 112 - 400/180 = -288/180
  5. After reducing the fraction, the answer is -8/5

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