-2целых 4\13(13-p)+1целая1\13(25-p)при p=3целых1\4

Question

-2целых 4\13(13-p)+1целая1\13(25-p)при p=3целых1\4

Answer 1

-2 4/13(13-p)+1 1/13(25-p)= -30+30p/13+26 12/13-14p/13=16p/13 -3 1/13
при  р=3 1/4
16*13/13*4 -3 1/13=4-3 1/13=12/13