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           Hi Nicole, 
          I'll show you how to simplify this expression by doing a similar problem, 
          
             18 h2/3h4   
             
          The first thing to notice here is that the numerator and denominator are both divisible by 3 so the expression can be simplified to 
          
             6 h2/h4  
             
          Now if you think of h2 as h   h and  h4 as h   h   h   h  then you can also see that the numerator and denominator are both divisible by h   h. Thus the expression further simplifies to 
          
            6/h   h  = 6/h2 
             
          Now try your problem, 
            Penny 
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