Divide the following rational numbers: a. 5 3/8 ÷ (- 7.15) = b. (- 45.75) ÷ 10.8 =

(5 3/8) ÷ -7.15 = 5.375 ÷ -7.15 = -0.7517

do (b) in like wise. Just use your calculator, since it's already in decimal form.

or, if you want a rational answer,
(5 3/8) ÷ -715/100 = 43/8 * -100/715 = -4300/5720 = -215/286