Verified Answer :

1Jr

He has left 4 1/2 lawns to mow.

As there are total 6 lawns, Mason has mowed 1 1/2 lawns.
The remaining lawns are
6 - 1 1/2 = 6 - 1.5 = 4.5 = 4 1/2

Answer:

4 1/2 is the answer! Hope this helps!

Step-by-step explanation: