Răspuns:
[tex]\frac{29}{12}[/tex]
Explicație pas cu pas:
[tex]\frac{16}{36} + 2\frac{7}{21} - \frac{6}{36} -\frac{7}{36} =[/tex]
[tex]\frac{16}{36} +\frac{49}{21} -\frac{6}{36} -\frac{7}{36} =[/tex]
[tex]\frac{16*21}{36*21} +\frac{36*49}{36*21} -\frac{21*6}{21*36} -\frac{7*21}{36*21} =[/tex]
[tex]\frac{336}{756} +\frac{1764}{756} -\frac{126}{756} -\frac{147}{756} =[/tex]
[tex]\frac{1827/3}{756/3}[/tex][tex]=[/tex]
[tex]\frac{609/3}{252/3} =[/tex]
[tex]\frac{203/7}{84/7}[/tex] = [tex]\frac{29}{12} =[/tex] 2,41(6)
