So, the bag weights 11[tex] \frac{1}{2} [/tex], that is 11.5,, and also that is [tex] \frac{11*2+1}{2} = \frac{23}{2} [/tex] correct?
I changed it into an improper fraction, because the division will be easier later.
A serving is [tex] \frac{3}{4} [/tex]. So what we need to do is the divide the weight of the bag, that is [tex] \frac{23}{2} [/tex] by the weight of the serving, that is [tex] \frac{3}{4} [/tex].
a division by fraction is a multiplication by its inverse, like this:
[tex] \frac{23}{2} [/tex]*[tex] \frac{4}{3} [/tex]
now we can simplify: the denominator of the first and the nominator of second are multilications of 2:
[tex]\frac{23}{1} [/tex]*[tex] \frac{2}{3}= \frac{46}{3} \frac{1}{3} [/tex]
so there are 15 servings and a little will be left over.
