Question 89348


   Estimate the following sum.

4 1/9 + 7 9/10 + 2 1/7 + 5 7/8 

     convert all the mixed to improper fractions 
           
     37/9+79/10+15/7+47/8 
   L.C.M.OF 9,10,7& 8 = 2520

     280*37+252*79+360*15+315*47/2520

    10360+19908+5400+14805/2520
    
    50473/2520