Помогите решить 1 3/7*x+7/8=1 3/8
1 3/7=10/7 1 3/8=11/8 10x/7+7/8=11/8 10x/7=11/8-7/8 10x/7=4/8 10x=4/8*7 x=28/8:10=28/80=7/20