Вот щас помогите!!!!

А)3/7*1 5/9=3/7*14/9=2/3;//// б)1 8/13*3 5/7=21/13*26/7=6; //// в)3 3/5*5=18/5*5/1=18; /////Г)3/8:3=3/8*1/3=1/8;//// д)10 2/3:1 7/9=32/3*9/16=6;///// е)11/12:7/24*21/22=3; 1)11/12*24/7=22/7; 2)22/7*21/22=3; ///ж)(3 1/6-2 7/15):1 2/5=1/2; 1)19/6-37/15=95/30-74/30=21/30=7/10; 2)7/10*5/7=1/2; ////з)45/10:27/10=45/10*10/27=5/3=1 2/3; ///и) 2 1/6:1 1/3=13/6*3/4=13/8=1 5/8; ///к)36/100*5/9=4/20=1/5; ///л)(4 2/7*1 3/4-3,36)/(0,8+1,5)=1,8; 1)30/7*7/4=30/4=7,5; 2)7,5-3,36=4,14; 3)0,8+1,5=2,3; 4)4,14:2,3=1,8;