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Mathematics 20 Online
OpenStudy (anonymous):

What is 9/16 + -1/4? A. 2/3 B. 1/4 C. 3/4 D. 5/16

OpenStudy (anonymous):

Okay, first you need to find a common denominator. Do you know what it is?

OpenStudy (anonymous):

it is 64??

OpenStudy (anonymous):

That is a common, but it's not the least. Can 4 go into 16?

OpenStudy (anonymous):

4 is less than 16

OpenStudy (anonymous):

Is 16 divisible by 4?

OpenStudy (anonymous):

yes of course, is 4

OpenStudy (anonymous):

Okay, so now we know that 16 is the Least Common Denominator. Now, what do we have to do to get -1/4 into something over 16?

OpenStudy (anonymous):

it is 4, because 16 : 4 x 1 = 4?????

OpenStudy (anonymous):

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