Question

-30-23,1:(4 6/35-5 7/20)=

Answer 1

-30-23,1:(4 6/35-5 7/20)=-10.4

1)4 635-5 720=4 24140-5 49140=-1 25140=-1 528
2)23.1:(-1 528)=23110*(-2833)=-985=-19 35=-19.6
3)-30+19.6=-10.4