awk or perl to eval mathematical expressions in each line

I want a script to make awk to become an interactive mathematical calculator, to eval mathematical expressions given in each line. I.e., instead of constructing awk commands to calculate expressions like the following:

$ awk 'BEGIN{print 180/1149}'
0.156658

$ awk 'BEGIN{print (150+141)/1149}'
0.253264

I want my script to take my mathematical expressions as input and do the calculation interactively. So the session will look like (alternative of input and output):

180/1149
0.156658
(150+141)/1149
0.253264
1 + 2
3
2 * 3 - 5
1

However I'm not able to do that myself:

$ awk '{print}'
180/1149
180/1149
^C

$ awk '{print $0}'
180/1149
180/1149
1 + 2
1 + 2
^C

If there is no simple solution to awk, what else, like perl?