This is how you add
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Step 1We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator. Now we multiply 6 by 12, and get 72, then we multiply 9 by 12 and get 108. Now for the second term. You multiply 10 by 9, and get 90, then multiply 9 by 12 and get 108. This gives us a new problem that looks like so:
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Step 2Since our denominators match, we can add the numerators. 72 + 90 = 162 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... 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... Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:
Now, try the same number again. Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:
Now, try the same number again. Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:
Now, try the same number again. No good. 3 is larger than 2. So we're done reducing. Congratulations! Here's your final answer to 6/9 + 10/12
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