Select each unit fraction.

A. 6/6
B. 1/8
C. 2/4
D. 1/3
E. 3/4

B. 1/8

D. 1/3

Unit fractions are fractions where the numerator is 1 and the denominator is a positive integer.

The unit fractions among the given fractions are:

B. 1/8
D. 1/3

To identify the unit fractions, we need to look for fractions where the numerator is 1 and the denominator is a positive integer. Let's analyze each option:

A. 6/6: This is not a unit fraction because both the numerator and denominator are 6.
B. 1/8: This is a unit fraction because the numerator is 1 and the denominator is 8.
C. 2/4: This is not a unit fraction because the numerator is 2, not 1.
D. 1/3: This is a unit fraction because the numerator is 1 and the denominator is 3.
E. 3/4: This is not a unit fraction because the numerator is 3, not 1.

Therefore, the unit fractions in the given options are B. 1/8 and D. 1/3.