suppose the farmer buys another 1/2 square mile of land and divides all his land into square fields 1/4 mile long and 1/4 mile wide. how many fields will he have?
1/4 mile long and 1/4 mile wide. so he had 16 fields in the beginningng
1/8
1/2+1/4+1/4=1
How much land did he have in the beginning?
You can work it algebraically or you could draw a diagram.
I see 4 more fields.