Math 011   Prof. Schaffer                                                     Hand-in assignment # 3

   Due Monday,  Oct. 13, 2008   for MWF classes.

   Due Tuesday, Oct. 14, 2008  for TR classes.

Do all work on separate paper. Show all work. Make sure that all answers are in simplest terms. Indicate final answers clearly.

1)  Find the least common multiple (LCM) for the following set of numbers. (Use either the table of divisors method or the prime factorization method.)

[ 1 pt. ]

                  18, 20, 60                                                               

2)  Find the least common denominator (LCD) for the set of fractions.

[ 1 pt. ]

3)  Write each of the following fractions as equivalent fractions with the given denominator.

[ 1 pt. ]

4)  Perform the indicated operations.

                                                             b)   

[ 2 pts. ]                                                                                                                    [ 5 pts. ]