Question 1018258
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Add a = {{{4}}}{{{3/4}}} and b = {{{6}}}{{{5/6}}}, then double.


a + b = {{{4}}}{{{3/4}}} + {{{6}}}{{{5/6}}} = {{{19/4}}} + {{{41/6}}} = {{{(3*19)/12}}} + {{{(2*41)/12}}} = {{{(3*19+2*41)/12}}} = {{{139/12}}} = {{{11}}}{{{7/12}}}.


P = 2*(a+b) = {{{22}}}{{{14/12}}} = {{{23}}}{{{2/12}}} = {{{23}}}{{{1/6}}}.
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