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Look at what is being asked for: They are looking for all the even numbers in the first question. And all of the numbers greater than 3 in the second questions.
Find what the denominator of the number.
Do this by adding all of the numbers together, so that you have the total bottom number.
1 + 2 + 3 + 4 + 5 + 6 = 21
Add up all the numbers for the parts that you are looking for:
2 + 4 + 6 = 12
Divide the12/21 = 0.571
However you could just type into your calculator to get 12r21. Click = and it will give you the even smaller number of 4r7.

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