bunaaa,dau coroana care ma ajuta ,si dau 20 de puncte + abonare va roggg

Răspuns:
260=2²·5·13
169=13²
39=3·13
cmmmc(260,169,39)=2²·3·5·13²=10140
³⁹⁾1/260+⁶⁰⁾3/169-²⁶⁰⁾1/39=39/10140+180/10140-260/10140= -41/10140