Angela is plowing a large field for spring planting. on the first day, she plowed 2/7 of the field. on the second day, she plowed 2/3 of the field.

what fraction of the field is not plowed at the end of the second day?

a) 1/21
b) 4/21
c) 17/21
d) 20/21

A) 1/21

Step-by-step explanation:

2 + 2 is hard to do without making the denominators equal first.

7    3 you can multiply the fractions until the denominators are equal.

6 + 14 = 20

21   21     21

now that this is done, the answer is as simple as looking at how much is left until a whole is completed. this will be A) 1/21

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06