You need to understand what rational and irrational mean.
A rational number means a number that can be written as a RATIO of two whole numbers.For example 0.9 is rational because you can write it as the ratio 9/10 .Or another one, 0.25 is rational because it's a quarter which you can write as the ratio 1/4. Numbers like pi or root3 are irrational,because you can't express them as a ratio of two whole numbers.
So your question is - is -7/9 rational or irrational? Well,it's already a ratio of two whole numbers,so it's rational.
You need to understand what rational and irrational mean.
A rational number means a number that can be written as a RATIO of two whole numbers.For example 0.9 is rational because you can write it as the ratio 9/10 .Or another one, 0.25 is rational because it's a quarter which you can write as the ratio 1/4. Numbers like pi or root3 are irrational,because you can't express them as a ratio of two whole numbers.
So your question is - is -7/9 rational or irrational? Well,it's already a ratio of two whole numbers,so it's rational.
