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Subtract 32/45 from 20/8

1st number: 2 4/8, 2nd number: 32/45

20/8 - 32/45 is 161/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 45 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 45 × 8 = 360,
    32/45 = 32 × 8/45 × 8 = 256/360
  4. Subtract the two like fractions:
    900/360 - 256/360 = 900 - 256/360 = 644/360
  5. After reducing the fraction, the answer is 161/90
  6. In mixed form: 171/90

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