-0,15*20/21+1целая4/7:(-3целых1/7)=

Question

-0,15*20/21+1целая4/7:(-3целых1/7)=

Answer 1

-0,15*20/21+1целая4/7:(-3целых1/7)= -15/100*20/21 - 11/7÷22/7 = 3/20*20/21 - 11/7×7/22 = 1/7 - 1/2 = 2/14 - 7/14 = -5/14