David W. answered 03/03/16
Tutor
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Experienced Prof
In word (story) problems, the word "of" usually means multiply.
This problem asks you to find 1/3 of 2/5. If we multiply those, we get (1/3)*(2/5)=2/15
That way, I know that I will need 15 X's to show this.
XXX XXX XXX XXX XXX (2/5ths are bold)
XX XX XX (1/3 of them are bold)
The answer is 2/15 (2 out of 15)
XX XX XX XX XX XX XX X