What is 100/72 + 6/9?
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Here's how you add
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Step 1Our denominators (bottom numbers) don't match, so we can't add yet. 72 goes into 9 evenly, so we only need to multiply one term to get a common denominator. Multiply 6 by 8, and get 48, then we multiply 9 by 8 and get 72. We now have a new problem, that looks like this:
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Step 2Since our denominators match, we can add the numerators. 100 + 48 = 148 Answer:
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Step 3Now, do we need to simplify this fraction? First, we attempt to divide it by 2... Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:
Now, try the same number again. Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:
Now, try the same number again. 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... No good. 19 is larger than 18. So we're done reducing. Congratulations! Here's your final answer to 100/72 + 6/9
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