Which is greater 2 sixths or 4 sixths?

To compare fractional size.

2/6 & 4/6

Since both have the same denominator, then we just compare the numerators.

4 > 2

Hence it follows that 4/6 > 2/6

However, I think you may be being 'tricked' with this question. You should see that 4/6 = 2/3 & 2/6 = 1/3

These are the fractions in their lowest terms.

Similarly just compare the numerators 2 > 1 Hence 2/3 > 1/3

Another way is to convert to decimals

2/3 = 4/6 = 0.666....

1/3 = 2/6 = 0.333...

I think you should be able to recognise that 0.666..,. > 0.333....

NB The 'dots' have the last decimal digit indicate that it recurs to infinity.