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Mathematics 18 Online
OpenStudy (anonymous):

12 1/3-4 5/9=

OpenStudy (mathlegend):

I would change the mixed numbers into improper fractions first

OpenStudy (mathlegend):

12 1/3 = 37/3 4 5/9 = 41/9

OpenStudy (mathlegend):

Then, you would have to have common denominators....

OpenStudy (mathlegend):

Multiply 37/3 by 3 to get 111/9

OpenStudy (mathlegend):

Now, we have... 111/9 - 41/9 = 70/9

OpenStudy (mathlegend):

@simeTK

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