This is the question I was just looking for an answer to online! So I still need some clarification. If you have changed to a ‘purely fractional form’ does that mean in older terminology that you have changed it to an ‘improper fraction’? Also, let’s say students had to do that step and then they subtract to find the solution… what do they do next? Should they change back to a mixed number… should they simplify and if so first or last… I basically feel that kids needs to know how to make sense of fractions and interchange them as needed especially since with TESTING… many questions will have multiple choice answers. What if the PARCC assessment has a LCD answer or a simplified answer? I hope I’m making sense! I just found your blog and it’s super helpful!