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Subtract 6/90 from 45/20

1st number: 2 5/20, 2nd number: 6/90

45/20 - 6/90 is 131/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    45/20 = 45 × 9/20 × 9 = 405/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    6/90 = 6 × 2/90 × 2 = 12/180
  4. Subtract the two like fractions:
    405/180 - 12/180 = 405 - 12/180 = 393/180
  5. After reducing the fraction, the answer is 131/60
  6. In mixed form: 211/60

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