To find the answer to your question, you must figure out where the fractions are located on the number line.
-1 1/6 is the small vertical line to the left of the line with the -1. To write this, you must write -1 1/6 above the small vertical line to the left of the line labled -1
To label a line with 7/3, we must find what 7/3 is equivalent to when the denominator is 6, as the number lines are split into sixths. We must also convert it from an improper fraction to a mixed fraction. To do this, we must figure out how many denominator values (3) can fit into the numerator values (7). 3 can fit into 7 twice, with a remander of 1. This makes the fraction 2 1/3, which is equivalent to 2 2/6.
To mark this on the line, we must find 2, and mark 7/3 two vertical lines to the right.