A fraction with the same numerator (number on top) as another but with a smaller denominator (number on bottom) is a larger number. For example 1/2 is bigger than 1/3 which is bigger than 1/4, etc. That is because if you divide 1 by 2, you get 0.5 but 1 divided by 3 is only 0.333 and 1 divided by 4 is only 0.25. So 1/3 is bigger.
The probability for getting a red apple is 70% and green apples is 30%. So for getting three different apples is impossible since there are two types of apples.
