Question

2/7-(1-5/7)×(13/2-3/4)=
REPEDE VA ROG (DAU CORONA)​

Answer 1

Răspuns:$\frac{2}{7} -(1-\frac{5}{7} )*(\frac{13}{2} -\frac{3}{4} )=\frac{2}{7}-\frac{7-5}{7} *\frac{26-3}{4} =\frac{2}{7}-\frac{2}{7} *\frac{23}{4} =\frac{2}{7}-\frac{2*23}{7*4} =\frac{8}{28} -\frac{46}{28} =-\frac{38}{48} =-\frac{19}{24}$

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