45/3 divided by 90/4

45/3 ÷ 90/4
=
2 3
Decimal: 0.666667
Percentage: 66.67%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    90/4 becomes 4/90
  2. 2
    Multiply by reciprocal
    45/3 × 4/90
  3. 3
    Multiply numerators & denominators
    45 × 4 = 180    3 × 90 = 270
  4. 4
    Simplify
    180/270 = 2/3

How to Divide Fractions

To divide fractions, use "Keep, Change, Flip": keep the first fraction unchanged, change the ÷ to ×, then flip the second fraction. Multiply and simplify.

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