SOLUTION: could you guys give me a example for adding and subtracting fractions for pre algebra please

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Question 1108565: could you guys give me a example for adding and subtracting fractions for pre algebra please
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
could you guys give me a example for adding and subtracting fractions for pre algebra please
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1%2F3+%2B+1%2F5+=+5%2F15+%2B+3%2F15+=+8%2F15
1%2F2+-+1%2F7+=+7%2F14+-+2%2F14+=+5%2F14
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1%2Fa+%2B+1%2Fb+=+b%2F%28ab%29+%2B+a%2F%28ab%29+=+%28a%2Bb%29%2Fab