Posted by **Bryan** on Sunday, July 13, 2008 at 7:13pm.

Subtract and Simplify

2/3 - 1/5 = 1/2

- Math (Check -
**Ms. Sue**, Sunday, July 13, 2008 at 7:21pm
Not quite.

The common denominator 15 (the smallest number divisible by both 3 and 5).

Since 15 divided by 3 is 5, then you multiply the numerator by 5.

Since 15 divided by 5 is 3, then you multiply the numerator by 3.

2/3 - 1/5 = 10/15 - 3/15 = 7/15

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