Question

30-23,1:(5 7/20 - 4 6/35) решение

Answer 1

30-23,1:(5 7/20-4 6/35)=10,4
1)5 7/20-4 6/35=107/20-146/35=749/140-584/140=165/140=33/28
2)23,1:33/28=231/10:33/28=231/10*28/33=98/5=19,6
3)30-19,6=10,4