B. 2 1/5 Divide the 11 cakes by the 5 people. 11/5 =2.2 To convert 2.2 to a fraction: Put 2.2 over one: 2.2/1 Then multiply both the numerator and denominator by the number of places after the decimal. Since we move by one place, we multiply both by 10. 2.2*10/1*10 = 22/10 Reduce the fraction. 22/10=11/5 Now divide the 11 by the five. 5 can fit into 11 two times, with 1/5 left over.
If you want to make it so that you work most of the hours on the first 4 days, you should work 5 hours. 5*4=20, so 1 hour would be left over on the 5th day.