90/4 divided by 100/2

90/4 ÷ 100/2
=
9 20
Decimal: 0.45
Percentage: 45%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    100/2 becomes 2/100
  2. 2
    Multiply by reciprocal
    90/4 × 2/100
  3. 3
    Multiply numerators & denominators
    90 × 2 = 180    4 × 100 = 400
  4. 4
    Simplify
    180/400 = 9/20

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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