Change  to the decimal 
Change  to the decimal 
Change  to the decimal 









Now put this over 



Now we make a unit fraction, using
inches and feet that is a fraction 
that equals 1, that has equal
numerator and denominator, and which
will cancel away the inches. We know
that . Therefore such a
unit fraction is  

But we need to cancel away ,
so we cube the unit fraction and get
 or


Now we multiply by that unit fraction:



Now we can cancel the 



and all we have left is



Divide that out and get:



or to the nearest hundredth of a 



Edwin