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Subtract 5/90 from 20/8

1st number: 2 4/8, 2nd number: 5/90

20/8 - 5/90 is 22/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    20/8 = 20 × 45/8 × 45 = 900/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    5/90 = 5 × 4/90 × 4 = 20/360
  4. Subtract the two like fractions:
    900/360 - 20/360 = 900 - 20/360 = 880/360
  5. After reducing the fraction, the answer is 22/9
  6. In mixed form: 24/9

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