Posted by Alice on Saturday, April 6, 2013 at 1:45pm.
Simplify the expression (square root)
√45/144
Thanks.

Math  Reiny, Saturday, April 6, 2013 at 2:34pm
= 3√5/144
= √5/48

Math  Alice, Saturday, April 6, 2013 at 2:49pm
Thank you for your answer but I was thinking that the answer will be √9.5/12 then 3√5/12 and I do not know what to do with the denominator "12".

Math  Alice, Saturday, April 6, 2013 at 2:52pm
Or could be 3√5/4*3 = 6√5.

Math  Reiny, Saturday, April 6, 2013 at 3:12pm
I evaluated it according to the way you typed it.
It seems you are taking it as
√(45/144)
which would be √45/√144 = 3√5/12 = √5/4
Can you see why brackets would be essential for that interpretation?

Math  Alice, Saturday, April 6, 2013 at 4:13pm
I get it , Thanks for everything
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