Question

Michaela caught 3 fish, which weigh a total of 19 1/2 pounds. One fish weighs 7 5/8 pounds and another weighs 5 3/4 pounds. How much does the third fish weigh?

Answer 1

Let x be the weight of first fish
      y be the weight of second fish
      z be the third fish

x = 7 5/8 pounds
y = 5 3/4 pounds
z = ?

19 1/2 = 7 5/8 + 5 3/4 + z
z = 6 1/8 pounds

Hope this answers the question. Have a nice day.