I have two questions:
(1) I want to present a quiz on addition and subtraction of fractions. But so far my students could simply type something like: 5*7 + 3*2 / 2 * 7, and the Stack module seems to do the calculations for them. I want to force them to enter: 41/14. (Better still would be: 2 13/14, but I don't know how to enter such a number).
(2) I want my quiz to contain three questions of the same type. So far, I copied a question two times and renamed it. Is there a more elegant way?
Thanks in advance for your insights,