(a) Find the average of the rational number 4/5 2/3 5/6
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Better to find the common denominator first - i.e. the number that can be divided by 5, 3, and 6. It’s 30.
4/5 = 24/30
2/3 = 20/30
5/6 = 25/30
Add the top numbers and you get 69.
69/3 = 23
The average is 23/30.
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