(1):(3-(1:(4-(1:(5-1/6)))))
3 5/6....................
=0.365448505 Многовато.
1) 5-1/6==4.8333333333
2)1÷4.8333333333 =0.2068965517
3)1÷3.7931034483 =0.2636363636
4)3−0.2636363636 =2.7363636364
5)1÷2.7363636364 =0.365448505