Answer: She can use the 3/4 long ribbon.
Explanation:
Hi, to answer this question we have to express the length inn decimal form, and compare:
2/6 = 2 ÷ 6 = 0.3333333 m
3/4 = 3 ÷ 4 =0.75m
4/9= 4 ÷ 9= 0.44444m
The ribbon must be longer than 2/3 meters
2/3= 2 ÷ 3 =0.66666
So, she can use the 3/4 long ribbon.
Because 0.75> 0.6666
Feel free to ask for more if needed or if you did not understand something.