Answer:
a: b: c= 2: 9 :4
Explanation:
Since b is the common variable in both fractions, ensure that the value of b in both fractions are the same. Here, the value of b in both fractions are 9. Thus, we can find their relationship with one another in terms of ratio by combining the two fractions together.
a: b: c= 2: 9: 4
This ratio is already in it's simplest form.