What is 45/4 + 5/11?
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This is how you add
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Step 1We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator. Now we multiply 45 by 11, and get 495, then we multiply 4 by 11 and get 44. Now for the second term. You multiply 5 by 4, and get 20, then multiply 4 by 11 and get 44. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 495 + 20 = 515 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. So next you try the next prime number, which is 29... No good. So next you try the next prime number, which is 31... No good. So next you try the next prime number, which is 37... No good. So next you try the next prime number, which is 41... No good. So next you try the next prime number, which is 43... No good. So next you try the next prime number, which is 47... No good. 47 is larger than 44. So we're done reducing. And we're done! Here's the final answer to 45/4 + 5/11
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