{5/18-7/12+3-(2/9^2)}/(5/36)=

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{5/18-7/12+3-(2/9^2)}/(5/36)={5/18-7/12+3-(2/9^2)}/(5/36)={5/18-7/12+3-(2/9^2)}/(5/36)={5/18-7/12+3-

{5/18-7/12+3-(2/9^2)}/(5/36)=
{5/18-7/12+3-(2/9^2)}/(5/36)=

{5/18-7/12+3-(2/9^2)}/(5/36)=
{5/18-7/12+3-(2/9^2)}/(5/36)
=(5/18-7/12+3-2/81)*(36/5)
=(5/18)*(36/5)-(7/12)*(36/5)+3*(36/5)-(2/81)*(36/5)
=2-21/5+108/5-8/45
=(90-189+972-8)/45
=865/45
=173/9