Question

23/3+39/2:4,5=2х     3/5:0,1+4,2=21/6+61/2=?     решите??

Answer 1

x=((23+39*10/30)/(45*2/30))/2=36/(3*2)=6
(3/5)/0.1+4.2=6+4.2=10.2