Помогите решить пример этот

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1. (5/11)*0,006*2¹/₅=(5/11)*(6/1000)*(11/5)=6/1000.

2. 1¹/₈*0,004*(8/9)=(9/8)*(4/1000)*(8/9)=4/1000.

3. 6/1000+4/1000=10/1000=1/100=0,01.

4. 0,5*0,000,9+0,0001*0,5=0,5*(0,0009+0,0001)=0,5*0,001=0,0005.

5. 0,01:0,0005=20.