Question 340068
<pre><b>
We start by putting it over 1:

{{{1500cm/1}}}

Now we use the fact that 2.54cm = 1in, and make a unit multiplier
with "cm" on the bottom to cancel out the "cm" in the top, and multiply
by it:

{{{1500cm/1}}}{{{"×"}}}{{{1in/2.54cm}}}

Cancelling the "cm",

{{{1500cross(cm)/1}}}{{{"×"}}}{{{1in/2.54cross(cm)}}}

Next we use the fact that 12in = 1ft, and make a unit multiplier
with "in" on the bottom to cancel out the "in" in the top, and multiply
by it:

{{{1500cross(cm)/1}}}{{{"×"}}}{{{1in/2.54cross(cm)}}}{{{"×"}}}{{{1ft/(12in)}}}

Cancelling the "in",

{{{1500cross(cm)/1}}}{{{"×"}}}{{{1cross(in)/2.54cross(cm)}}}{{{"×"}}}{{{1ft/(12cross(in))}}}

So all that's left is

{{{(1500*1*1ft)/(1*2.54*12)}}}


or

{{{expr(1500/(2.54*12))ft}}}

or

49.21259843 ft

Edwin</pre>