Question

How else can we compare rational numbers, especially if we don't have a number line?

Answer 1

ANSWER and EXPLANATION

To compare rational numbers without a number line graph, we can put all the numbers as fractions with a common denominator or express all the numbers as decimals.

Let us express the given numbers are decimals:

$\begin{gathered} \frac{4}{5}\Rightarrow0.8 \\ 0.83\Rightarrow0.83 \\ 0.703\Rightarrow0.703 \\ \frac{7}{9}\Rightarrow0.778 \end{gathered}$

This way, the numbers can be easily compared by checking their decimal form.