Answer:
B). 1/6
Step-by-step explanation:
There's 2 sides with length 1/4 and one side with length x.
2 * 1/4 + x = 2/3
2/4 + x = 2/3
6/12 + x = 8/12
x = 2/12
x = 1/6
B is the correct answer because 1/6 is the simplest form of the fraction, while 2/12 is not.
