If Lobato needs 4
5 of a liter of dragon snot to make a full batch of potion but he only has 3
5 of a
liter of dragon snot, then what fraction of a batch of potion can Lobato make (assuming he has
enough of the other ingredients)?
(a) Make a math drawing to help you solve the problem and explain your solution. Use our
definition of fraction in your explanation and attend to the whole (unit amount) that each
fraction is of.
(b) Describe the different wholes that occur in part (a). Discuss how one amount can be
described with two different fractions depending on what the whole is taken to be.
