Question

the hcf of 9, .09and .009 is

Answer 1

I think you can use long division method
... hope answer helps you
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Answer 2

by using long division method
first, let the no. as 9/1, 9/100, 9/1000
so the hcf of these numbers is
9/1=3*3
9/100=3*3*1/10*1/10
9/1000=3*3*1/10*1/10*1/10

so hcf is 3*3= 9

hope this will help. Any questions ask me