(1/4+2/3*9/16)/5/12

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(1/4+2/3*9/16)/5/12

(1/4+2/3*9/16)/5/12
(1/4+2/3*9/16)/5/12

(1/4+2/3*9/16)/5/12
=(1/4+3/8)/60
=5/8/60
=1/96