Melagu74
24

# In a fish tank 6/7 of the fish have red a stripe on them. If 18 of the fish have red stripes how many total fish are in the tank?

x - the total number of fish in the tank 6/7 of the fish in the tank have red stripes. 18 of the fish have red stripes. $\frac{6}{7}x=18 \\ x=18 \times \frac{7}{6} \\ x=3 \times 7 \\ x=21$ There are 21 fish in the tank.