If a fish tank,8/11 of the fish have a red stripe on them. if 16 of the fish have red stripes, how many total fish are in there

8/11> 16

to find the total number of fish, divide 16 by 8 and multiply it by 11,

16÷8=2
2×11=22

total number of fish= 22

check,

22÷11×8=16

if you want to find the number of fish without the red stripes,

8/11> 16
11/11>22
3/11>?

you can either subtract 16 by 22=6
or
22÷11×3=6

hope this helps