1-7 pomogite pojaluysta
1 номер.1)(2/3)^2+1/6=4/6+1/6=5/6 2)12-9 3/7 = 11 7/7-9 3/7=2 4/7 3)1 1/3*1 1/2=(3/3)^2*(2/2)^3=36/6=6 4)36,12/12=3,01 2 номер . 0,8/(2/3)^2+5/9)=0.8 1)(2/3)^2=4/9 2)4/9+5/9=9/9=1 3)0,8/1=0,8