Answer:
the fraction of the invitations considered to be an animal on them is
![(3)/(7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/pbztkcj8fx95cwc7tgkmd8mnlulpflv8xh.png)
Explanation:
The computation of the fraction of the invitations considered to be an animal on them is shown below:
= Children party invitations × animal on them
![= (15)/(21) * (3)/(5)\\\\= (3)/(7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/rqvdn1u4r4th5yyg2rjtby7nr3cfynagmk.png)
Hence, the fraction of the invitations considered to be an animal on them is
![(3)/(7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/pbztkcj8fx95cwc7tgkmd8mnlulpflv8xh.png)