word problem

Sorry Rosala I misunderstood your question

\\\frac{Flour}{Milk}=\frac{1}{1\frac{2}{4}}=\frac{flour\;needed}{2\frac{1}{2}}\\\\\\

\begin{array}{rll} \frac{1}{1\frac{2}{4}}&=&\frac{flour\;needed}{2\frac{1}{2}}\\\\

2\frac{1}{2}\times \frac{1}{1\frac{2}{4}}&=&2\frac{1}{2}\times \frac{flour\;needed}{2\frac{1}{2}}\\\\

2\frac{1}{2}\times \frac{1}{1\frac{2}{4}}&=&\;flour\;needed\\\\

flour\;needed&=&\;2\frac{1}{2}\div {1\frac{2}{4}}\\\\

\end{array}

This is the LaTex that I used.  It looks horrible when it is in a big chunk like this but you can learn to do it a little a time.  It is not that hard.

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Just look at this bit

\frac{flour\;needed}{2\frac{1}{2}}  

$$\frac{flour\;needed}{2\frac{1}{2}}$$    this is the LaTex output

\ means that a function will follow

frac means fraction  the top is in the first parenthesis { } and the bottom is in the next parenthesis { }

But you can see I have embedded another fraction inside second lot of parenthesis so there will be a fraction on the bottom.

Does that make sense?

*** one and two quarts cups of milk ***

Strange unit measure. Convert it to imperial minims then we can solve it.

it is supposed to say one and two quarters cups of milk

In that case, it's 1 and 2/3 cups of flour. Assuming a linear proportion. In food prep, it is sometimes not a linear proportion.  This probably is.

$$\\\frac{Flour}{Milk}=\frac{1}{1\frac{2}{4}}=\frac{flour\;needed}{2\frac{1}{2}}\\\\\\ \begin{array}{rll} \frac{1}{1\frac{2}{4}}&=&\frac{flour\;needed}{2\frac{1}{2}}\\\\ 2\frac{1}{2}\times \frac{1}{1\frac{2}{4}}&=&2\frac{1}{2}\times \frac{flour\;needed}{2\frac{1}{2}}\\\\ 2\frac{1}{2}\times \frac{1}{1\frac{2}{4}}&=&\;flour\;needed\\\\ flour\;needed&=&\;2\frac{1}{2}\div {1\frac{2}{4}}\\\\ \end{array}$$

$${\frac{\left({\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right)}{\left({\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{2}}}{{\mathtt{4}}}}\right)}} = {\frac{{\mathtt{5}}}{{\mathtt{3}}}} = {\mathtt{1.666\: \!666\: \!666\: \!666\: \!666\: \!7}}$$

$$\mbox{So it looks like you need }1\frac{2}{3}\;\mbox{cups of flour}$$

Melody what did u use to get that flour/milk  one upon the other??

Well it is a ratio question and they can be done like fractions.

The ratio of flour to milk will always be the same and this ratio is

$$\begin{array}{rll} flour&:&milk\\ 1&:&1\frac{2}{4}\qquad \mbox{this one you have been given}\\ flour\; needed&:&2\frac{1}{2}\qquad \mbox{This is the new ratio but it must be the same as the other one so I turned them into fractions}\\\\ \frac{1}{1\frac{2}{4}}&=&\frac{flour\;needed}{2\frac{1}{2}} \end{array}$$

Do you understand now Rosala?

no i mean what function u use to get it one upon the other!like when i type a fraction i latex i cant get it actually as a fraction one upon the other!

Ummm Melody!Does that mean that i will have to write the whole thing like 

\\\frac{Flour}{Milk}=\frac{1}{1\frac{2}{4}}=\frac{flour\;needed}{2\frac{1}{2}}\\\\\\

this!

is that what u all write to show the fraction one upon others!

Copy the code underneath here.  

Open LaTex and paste it in.   Give it a moment to process it and then press ok

\frac{6}{4\frac{1}{2}}

This will be your output

$$\frac{6}{4\frac{1}{2}}$$

Give it a go.  

okay then let me try!

$$\frac{6}{4\frac{1}{2}}$$  

WOW it worked !thanks!but how do i get the same input for other questions!