Hi Reduction of rational functions seems not to work in specific cases. In the following output,

=================== sage: R.<t>=QQ[] sage: (2*t+2)/(2*t) (2*t + 2)/(2*t) sage: (2*t+2)/(2) t + 1 sage: (2*t^2+2*t)/(2*t) t + 1 =================== 2 is not reduced in the first calculation. SageMath version 8.1 -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.