Posted by **Christine** on Thursday, June 30, 2005 at 2:54pm.

If a and b are positive integers and their product is 3 times their sum, what is the value of 1/a + 1/b?

Given that ab = 3(a + b).

From this, ab/3 = a + b.

Dividing through by ab yields 1/a + 1/b = 1/3.

- Hehe -
**Anonymous**, Tuesday, January 20, 2015 at 7:40pm
I'm not late at all

- math -
**Mr. Sue**, Wednesday, March 18, 2015 at 11:46pm
42.

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