Mean = Average of a set of numbers.
3 + 8 + 21 + 22 + 36 = 90
90/5 = 18
Mean = 18
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That would be 90.
21/7 = 3 21/3 = 7 36/2 = 18 36/4 = 9 36/6 = 6 36/12 = 3 36/18 = 2 and, of course, both 21 and 36 can be divided by 1 and themselves
To simplify the fraction 21/36 you would divide the numerator and denominator by the GCF (greatest common factor) of 21 and 36 which is 3. So this simplifies to: 21/36 = (3 * 7)/(3 * 12) = 7/12.
27 and 1/3
Yes. By multiplying 3/3 times 7/12, you get 21/36.