Sagot :
40 because you can cancel 9 and 72 it will be left with 8 x 5 which is 40
[tex] \frac{5}{9} * \frac{72}{1} \\
\\ \frac{5}{9} * \frac{72}{1}= \frac{40}{1} \\
\\ \frac{40}{1}=40 \\ [/tex]