2 2/3÷3 1/3= x÷3,5 срочно
3 1/3*x=3.5*2 2/3 10/3x=7/2*8/3 10/3x=28/3 x=28/3:10/3 x=28/3*3/10 x=28/10=2.8
2 2/3 : 3 1/3=x:3,5 8/3*7/2=x*10/3 4/3*7=10/3x 28/3=10/3x 14/5=x x=2,8