On a meter stick, one millimeter is generally the length of the whole stick length of one thousand sticks distance between two of the numbered lines distance between two of the small, unnumbered lines

The answer is A

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !