1 2 5 9 10 10. the middle numbers are 5 and 9 . So add them up and divide it by 2
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When you order the factors from least to greatest, the middle number is the median... ie: 9, 3, 10, 7, 2, 1... n order: 1, 2, 3, 7, 9, 10... the median: 5, since 3 and 7 are both the middle, 5 is in the middle of 3 and 7...
5/10 simplified is 1/2, because you can divide 5 and 10 by 5, so 5/5 is 1, and 10/5 is 2, therefore 1/2 = 5/10.
The factors of 10 are 1, 2, 5, and 10. The factors of 20 are 1, 2, 4, 5, 10, and 20. Common factors of 10 and 20 are 1, 2, 5, and 10. 1,2,5,10. 1, 2, 5 and 10.
1/2 + 1/10 = 6/10 1/2 = 5/10 5/10 + 1/10 = 6/10
2/10 simplifies to 1/5