Hi, > On Dec 4, 2015, at 4:02 PM, Damien Guillaume <damieng at msu.edu> wrote: > >> Okay, then I would use Maxima to figure out if the reduced fraction is equal to the fraction input by the student, see below. >> [...] > > That would accept "1+1/3" for "2/3". Yep, thanks for catching that. - Gerd.