Question

verify commutative property of multiplication for the following pairs of rational number 4/5 and minus 7 /8

Answer 1

using commutative property of multiplication

$\frac{4}{5} \times - \frac{7}{8} = - \frac{7}{8} \times \frac{4}{5} \\ \\ - \frac{28}{40} = - \frac{28}{40}$



LHS = RHS


hence verified

Answer 2

Consider the rational numbers -4/5 and -7/3. Then 

(-4/5 × -7/3) = {(-4) × (-7)}/(5 × 3) = 28/15, is a rational number. 

hope helps ☺️