Question

what fractional part of a pound is an ounce

Answer 1

Since there are 16 oz in 1lb, 1/16 of a pound is one ounce. 

Hope I helped!
Best of Luck :) 

Answer 2

we know that

$1pound$ -------> is equal to ------> $16 ounces$

So

By proportion

$\frac{1}{16}\frac{pound}{ounces} =\frac{x}{1}\frac{pounds}{ounce} \\ \\ x=\frac{1}{16} pounds$

therefore

the answer is

one ounce is equal to $\frac{1}{16}$ $pounds$