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You have to look for a common factor

For example, 16/28 has a common factor of 4. Divide both the top and bottom ( in this browser, it's left and right) by 4, and you get 4/7.

If you have square roots at the bottom, you have to multiply by the square root only to get it out of the bottom. For example, 1/(sqrt 2). You have to multiply both the top and bottom by (sqrt 2). You then get (sqrt 2)/2.

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Wiki User

11y ago

What else can I help you with?