What is 11/12 + 3/5?
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This is how we add
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Step 1Can you add yet? Nope! The denominators don't match. We need a common denominator. So next we take both denominators and multiply them. Next, take each numerator and multiply it by the denominator of the other term. So, we multiply 11 by 5, and get 55, then we multiply 12 by 5 and get 60. Now for the second term. You multiply 3 by 12, and get 36, then multiply 12 by 5 and get 60. We now have a new problem, that looks like this:
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Step 2Since our denominators match, we can add the numerators. 55 + 36 = 91 That gives us the sum, which is
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Step 3Now, do we need to simplify this fraction? First, we attempt to divide it by 2... Nope. Try the next prime number, 3... Nope. Try the next prime number, 5... Nope. Try the next prime number, 7... Nope. Try the next prime number, 11... Nope. Try the next prime number, 13... Nope. Try the next prime number, 17... Nope. Try the next prime number, 19... Nope. Try the next prime number, 23... Nope. Try the next prime number, 29... Nope. Try the next prime number, 31... Nope. Try the next prime number, 37... Nope. Try the next prime number, 41... Nope. Try the next prime number, 43... Nope. Try the next prime number, 47... Nope. Try the next prime number, 53... Nope. Try the next prime number, 59... Nope. Try the next prime number, 61... No good. 61 is larger than 60. So we're done reducing. Congratulations! Here's your final answer to 11/12 + 3/5
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