A machine made2 2/6 pencils in 1/2 of a minute.It made pencils at a rate of how many per minute?
if you can make 2 2/6 pencils in 1/2 a minute, you can make twice that many in 1 minute:
2 x (2 2/6) = 4 4/6 = 4 2/3 pencils every minute.
