Answer:fraction of the total area of the farm is covered by the pumpkin patch and the cornfield combined =4/5
Explanation:
Let total area of field be = 1 whole
area is covered by a pumpkin patch =3/5
area is covered by a cornfield =4/20
fraction of the total area of the farm is covered by the pumpkin patch and the cornfield combined
=area covered by a pumpkin patch+area covered by a cornfield
= 3/5 + 4/20
12+4/20
=16/20 = 4/5