Answer:
[tex]42[/tex]
Step-by-step explanation:
We need to find a common factor of 21 and 18 to find W
We can see that 3 is the only common factor
We fill in W to find V and U
[tex]U(3)=18[/tex]
Divide both sides by 3
[tex]U=6[/tex]
Now to find V
[tex]3V=21[/tex]
Divide both sides by 3
[tex]V=7[/tex]
Now we can find UV by filling in the values
[tex](6)(7)[/tex]
[tex]42[/tex]
I hope this helps please let me know if you have further questions