There is 12/15 of a pizza left how many 3/10 pieces can be made from left over pizza?

Amount of pizza that is left = 12/15
                                            = 4/5
The size of each pizza that can be made from the left over pizza = 3/10
Then
Number of pizza's that can be made
from the left over pizza = (4/5)/(3/10)
                                      = (4 * 10)/(5 * 3)
                                     = 40/15
                                     = 8/3
                                     = 2 2/3
So 2 2/3 pizza's can be made from the pizza that is left over. I hope the above deduction is simple enough for you to understand. You can definitely use this method in future for solving similar problems without requiring any additional help from outside.

4pounds of live bait and 1 pound of natural bait