What is 91/1 + 2/7?
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This is how we add
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Step 1We have to make sure the denominators are equal. 7 goes into 1 evenly, so we only need to multiply one term to get a common denominator. Multiply 91 by 7, and get 637, then we multiply 1 by 7 and get 7. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 637 + 2 = 639 So what's the answer so far?
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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. 11 is larger than 7. So we're done reducing. And we're done! Here's the final answer to 91/1 + 2/7
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