Выполните действия: (1целая3/5+1,8)×1/2 (6-4целых8/15):2,2 (1,25+1/6)×2,4
(1 3/5+1,8)×1/2= (8/5+9/5)×1/2=17/5×1/2=17/10=1 7/10 (6-4 8/15):2,2=(6-68/15):11/5=22/17×5/11=10/17 (1,25+1/6)×2,4=(5/4+1/6)×12/5=17/12×12/5=17/5=3 2/5