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Mathematics 11 Online
OpenStudy (anonymous):

What is 12 ¾ - 10 ½ ?

OpenStudy (mathmale):

You are subtracting "mixed numbers," which include integers and fractions. Looking at the fractions, you should see that the LCD is 4. Convert 1/2 to a fraction with 4 in the denominator. Can y ou now do the subtraction? Please show your work.

OpenStudy (anonymous):

im completely lost. i did this like 2 years ago idk how to do this now

OpenStudy (okdutchman7):

Convert the Mixed numbers into fractions 51/4 - 21/2 Create a common denominator which would be 4 since that is the lowest common multiple 51/4 - 42/4 Answer 9/4 (if you have to convert back into mixed numbers the answer would be 2 and 1/4)

OpenStudy (anonymous):

is has to be one of these [a] 1 ¾ [b] 2 ¼ [c] 2 ½ [d] 2 ¾

OpenStudy (anonymous):

b

OpenStudy (okdutchman7):

@mark1 the answer is b

OpenStudy (okdutchman7):

that is the same as 9/4

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