У решите уравнение 6 2/3: 1 7/9x=0.48:1,2
1 7/9x*0,48=6 2/3*1,2 16/9x*48/100=20/3*12/10 64/75x=8 x=8*75/64 x=75/8 x=9 3/8 =============== 6 2/3:1 7/9x=0,4 1 7/9x=6 2/3:0,4 16/9x=20/3*10/4 16/9x=50/3 x=50/3*9/16 x=75/8 x=9 3/8