23unit2\frac{2}{3} {unit}{ }^{2}32unit2
−23 unit 2-\frac{2}{3} \text { unit }^{2}−32 unit 2
32unit2\frac{3}{2} {unit}{ }^{2}23unit2
13 unit 2\frac{1}{3} \text { unit }^{2}31 unit 2