What is 25/9 + 4/5?
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Let's 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 25 by 5, and get 125, then we multiply 9 by 5 and get 45. Now for the second term. You multiply 4 by 9, and get 36, then multiply 9 by 5 and get 45. We now have a new problem, that looks like this:
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Step 2Since our denominators match, we can add the numerators. 125 + 36 = 161 Answer:
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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... No good. 47 is larger than 45. So we're done reducing. Congratulations! Here's your final answer to 25/9 + 4/5
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