What is 21/11 + 7/11?
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Let's add
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Step 1Since our denominators match, we can add the numerators. 21 + 7 = 28 This yields the answer
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Step 2The last step is to reduce the fraction if we can. To find out, we try dividing 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 + 7/11
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© 2014 Randy Tayler