What is 21/11 + 10/11?
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Here's how we add
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Step 1Since our denominators match, we can add the numerators. 21 + 10 = 31 So what's the answer so far?
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Step 2Can 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. 13 is larger than 11. So we're done reducing. And we're done! Here's the final answer to 21/11 + 10/11
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© 2014 Randy Tayler