18/4 divided by 80/4

18/4 ÷ 80/4
=
9 40
Decimal: 0.225
Percentage: 22.5%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    80/4 becomes 4/80
  2. 2
    Multiply by reciprocal
    18/4 × 4/80
  3. 3
    Multiply numerators & denominators
    18 × 4 = 72    4 × 80 = 320
  4. 4
    Simplify
    72/320 = 9/40

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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