Question 851239
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Hi,
Midpoint Pt(x,y):  ( {{{(x[1] + x[2])/2}}}, {{{(y[1] + y[2])/2  )}}})
(1/3,2/7)and 
(-1/2, 1/14) {{{2/6 - 3/6 = -1/6}}}  and {{{4/14 + 1/14 = 5/14}}}
Midpoint(-1/12, 5/28)