This is how to add
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Step 1We have to make sure the denominators are equal. 20 goes into 10 evenly, so we only need to multiply one term to get a common denominator. Multiply 8 by 2, and get 16, then we multiply 10 by 2 and get 20. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 3 + 16 = 19 That gives us an answer of
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Step 3Can this fraction be reduced? First, we attempt to divide it by 2... No good. So next you try the next prime number, which is 3... No good. So next you try the next prime number, which is 5... No good. So next you try the next prime number, which is 7... No good. So next you try the next prime number, which is 11... No good. So next you try the next prime number, which is 13... No good. So next you try the next prime number, which is 17... No good. So next you try the next prime number, which is 19... No good. So next you try the next prime number, which is 23... No good. 23 is larger than 19. So we're done reducing. And we're done! Here's the final answer to 3/20 + 8/10
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