SOLUTION: How can I simplify x+1/4= x+3/3 without using cross multiplication?

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Question 371182: How can I simplify x+1/4= x+3/3 without using cross multiplication?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Take lcd: %28x%2B1%29%2F4=+%28x%2B3%29%2F3,
3%28x%2B1%29%2F12+-+4%28x%2B3%29%2F12+=+0, which is the same as %283%28x%2B1%29+-+4%28x%2B3%29%29%2F12+=+0