What is 45/4 + 8/12?
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This is how to add
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Step 1Now we need to make our denominators match. 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 + 8 = 143 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... Nope! So now we try the next greatest prime number, 3... Nope! So now we try the next greatest prime number, 5... Nope! So now we try the next greatest prime number, 7... Nope! So now we try the next greatest prime number, 11... Nope! So now we try the next greatest prime number, 13... No good. 13 is larger than 12. So we're done reducing. There you have it! Here's the final answer to 45/4 + 8/12
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