Nico wants to use a horizontal number line to compare 1 3/4 and 1.5. He is unsure how to do it and asks you for help. How would you explain the process.

Draw a line and make 5 vertical marks about 1/2 inch. Label the middle one 0 then label the ones to the right to zero 1 1/2 and 1 3/4. Then do the same on the left but negative.