The easiest way to solve this is to turn all of the numbers into their decimal value. This will make them easier to compare and help you visualize them. If it helps you, after we have the decimal value, we can even plot them on a number line.
To find the decimal value of a fraction, we simply need to divide the numerator by the denominator. The resulting decimal is our answer.
[tex]-\frac{3}{8} = -.375 \\ \\ \frac{4}{7} = .571 \\ \\ .3 \\ \\ .5[/tex]
When the question says "farthest right on a number line," it is really asking for which number is the greatest. The further right a number is on a number line, the higher it is.
Therefore, using the logic and math above, we can conclude that 4/7 would be the furthest right on a number line.
