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First, we need to convert 20 pounds into ounces. 1 pound is equivalent to 16 ounces. Using this conversion factor, we get:
[tex]20\text{ pounds =}20\text{ pounds }\cdot\frac{16\text{ ounces}}{1\text{ pound}}=320\text{ ounces}[/tex]The ratio as a fraction is expressed as follows:
[tex]\begin{gathered} \frac{\text{ number of pounds}}{\text{ number of ounces}}=\frac{20\text{ pounds}}{36\text{ ounces}}= \\ \text{Substituting with 20 pounds = 320 ounces} \\ =\frac{320\text{ ounces}}{36\text{ ounces}}= \\ \text{ Cancelling the units and dividing numerator and denominator by 4:} \\ =\frac{\frac{320}{4}}{\frac{36}{4}}= \\ =\frac{80}{9} \end{gathered}[/tex]The ratio statement written as a fraction is 80/9