I always think of fractions as pieces of pizza. If one pizza is cut into 4 slices and another pizza is cut into 2 slices, which will have a bigger slice?
1/4 is the same as 0.25 or 25% of a whole
1/2 is the same as 0.5 or 50% of a whole
2/3 is the same as 0.66 or 66% of a whole
This means that the fractions ordered from least to greatest are B) 1/4, 1/2, 2/3