30-23,1:(5,1-4 6/35)=

7, 1: (5, 1-4 6/35) = 7, 1: (5, 1-4 0.1714285714) = 7, 1: (5, 0.8285714286) = 7, 5.8285714286

Therefore, 30-23, 1:(5,1-4 6/35) = 7, 5.8285714286.