What is 55/55 + 9/11?
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Here's how we add
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Step 1Our denominators (bottom numbers) don't match, so we can't add yet. Since 11 is evenly divided by 55, we can multiply just one term to get a common denominator. Multiply 9 by 5, and get 45, then we multiply 11 by 5 and get 55. The problem now has new fractions to add:
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Step 2Since our denominators match, we can add the numerators. 55 + 45 = 100 This yields the answer
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Step 3The last step is to reduce the fraction if we can. To find out, we try dividing it by 2... Nope. Try the next prime number, 3... Nope. Try the next prime number, 5... Are both the numerator and the denominator evenly divisible by 5? Yes! So we reduce it:
Now, try the same number again. Nope. Try the next prime number, 7... Nope. Try the next prime number, 11... Nope. Try the next prime number, 13... No good. 13 is larger than 11. So we're done reducing. Congratulations! Here's your final answer to 55/55 + 9/11
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