7/10 = 14/20
14/20 + 11/20
= 25/20 = 5/4
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2/5 x 10/11 = 20/55 = 4/11
10
(11+7+20+2+10)/5 = 50/5 = 10
well. 1 11 1 2 4 5 10 20 so the GCF is 1
Add up all the numbers together and then divide by 12 to find the average mean:- 68/12 = 17/3 or as 5 and 2/3