(163+1/13)/(41+1/39)=?
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(163+1/13)/(41+1/39)=?(163+1/13)/(41+1/39)=?(163+1/13)/(41+1/39)=?3.975(2120/13)/(1600/39)=2120*39/(
(163+1/13)/(41+1/39)=?
(163+1/13)/(41+1/39)=?
(163+1/13)/(41+1/39)=?
3.975
(2120/13)/(1600/39)=2120*39/(13*1600)=3.975