Решите уравнения 4 1/5:х = 3 3/10 6 2/3-(х+1/4) = 2 1/6 помогите

4 1/5:3=х
21/5*1/3=х
7/5=х
2 2/5=x
2,4=х

4 1/5:х=3 3/10
х=4 1/5:3 3/10
х=21/5:33/10
х=42/33
х=14/11
х=1 3/11

6 2/3-(х+1/4)=2 1/6
6 2/3-х-1/4=2 1/6
6 8/12-3/12-2 2/12=х
х=4 3/12
х=4 1/4