Помагите ришить 2 уровнения: 1)(3 5/6+а)-2 1/6=5        2)8 6/13-(б+9/13)=4 2 /13                                                             

[latex]3 \frac{5}{6}+a-2 \frac{1}{6} =5[/latex] [latex] \frac{23}{6}- \frac{13}{6} +a=5 [/latex] [latex]a=5- \frac{10}{6} [/latex] [latex]a=3 \frac{1}{3} [/latex] [latex]8 \frac{6}{13}-b- \frac{9}{13}=4 \frac{2}{13} [/latex] [latex] \frac{110}{13}-b- \frac{9}{13}= \frac{54}{13} [/latex] [latex]-b= \frac{54}{13}- \frac{101}{13} [/latex] [latex]b=3 \frac{8}{13} [/latex]