Question

If 16 counters are 4/9, then what is the ONE?

Answer 1

36...

divide your 16 by 4, so that you have 1/9. You then multiply the resulting number(4) by your denominator, 9. 4 times 9 = 36

Answer 2

$16 \ divided \ by \ 4 \ is \ 4 \\ \\ \frac{1}{9}*4= \frac{4}{36} \\ \\ \frac{36}{4}=9$