SOLUTION: what is -5/9 + 1/13

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Question 446828: what is -5/9 + 1/13
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+-5%2F9+%2B+1%2F13+
The LCD is +9%2A13+
Multiply the 1st term by +13%2F13+
Multiply the 2nd term by +9%2F9+
+%28-5%2F9%29%2A%2813%2F13%29++%2B+%281%2F13%29%2A%289%2F9%29+
+-65%2F117+%2B+9%2F117+
+-56%2F117+
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check with calculator:
+-5%2F9+%2B+1%2F13+=+-.5555+%2B+.07692+
+-5%2F9+%2B+1%2F13+=+-.4785+
and
+-56%2F117+=+-.4786+
close enough