What is 45/4 + 4/12?
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This is how you add
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Step 1We have to make sure the denominators are equal. 12 goes into 4 evenly, so we only need to multiply one term to get a common denominator. Multiply 45 by 3, and get 135, then we multiply 4 by 3 and get 12. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 135 + 4 = 139 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. 13 is larger than 12. So we're done reducing. And we're done! Here's the final answer to 45/4 + 4/12
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