Posted by Erin on Monday, April 27, 2009 at 2:55pm.
There is a circle that is cut in three slices one slice is (in fractions) 1/3 and one slice is 1/5. What fraction is the other slice. (it is a whole circle.)
Can you please tell me how to I can figure this out on my own.

math  Reiny, Monday, April 27, 2009 at 3:01pm
1/3 + 1/5
= 5/15 + 3/15
= 8/15
wouldn't that leave 7/15 for the third slice ?

math  Erin, Monday, April 27, 2009 at 3:08pm
But how did you figure it out like that.

math  Reiny, Monday, April 27, 2009 at 3:16pm
1/2 + 1/5 = 8/15, (see above)
the whole circle is 1 or 15/15
15/15  8/15 = 7/15
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