This problem is saying that Donna planted corn in 2/5 of her total of 6/7 acres of land.
2/5 = 4/10 = 0.4 = 40%
40% of 6/7 = 0.342857143
To find this in fraction form, just multiply the fractions.
2/5 • 6/7 = 12/35
12/35 is in simplest form, so it is the answer.
Answer:
Fraction Form- 12/35 acre
Decimal Form- 0.342857143 acre
Hope this helps!