Question 457638
You can plug sqrt(16/81) into the Google search line and it will tell you it = 0.4444444.
.
You can look at the current equation as simply
{{{sqrt((16)/(81))}}}
or perhaps
{{{sqrt((4*4)/(9*9))}}}
which might give you the idea the answer is:
{{{sqrt(16)/sqrt(81)}}}
or
{{{4/9}}}
.
Checking with a calculator (or the Google built-in calculator), you'll find 4/9 = 0.444444.
.
Done.