11 6) 16+m=20; г) х-3=3;, e) n +=+ 59 20 12 9

Решим данные уравнения: б) $$\frac{11}{16} + m = \frac{17}{20}$$ $$m = \frac{17}{20} - \frac{11}{16}$$ $$m = \frac{17 \cdot 4}{20 \cdot 4} - \frac{11 \cdot 5}{16 \cdot 5}$$ $$m = \frac{68}{80} - \frac{55}{80}$$ $$m = \frac{13}{80}$$ г) $$x - \frac{3}{5} = \frac{2}{9}$$ $$x = \frac{2}{9} + \frac{3}{5}$$ $$x = \frac{2 \cdot 5}{9 \cdot 5} + \frac{3 \cdot 9}{5 \cdot 9}$$ $$x = \frac{10}{45} + \frac{27}{45}$$ $$x = \frac{37}{45}$$ е) $$n + \frac{3}{20} = \frac{7}{12} + \frac{1}{9}$$ $$n = \frac{7}{12} + \frac{1}{9} - \frac{3}{20}$$ $$n = \frac{7 \cdot 15}{12 \cdot 15} + \frac{1 \cdot 20}{9 \cdot 20} - \frac{3 \cdot 9}{20 \cdot 9}$$ $$n = \frac{105}{180} + \frac{20}{180} - \frac{27}{180}$$ $$n = \frac{98}{180} = \frac{49}{90}$$ Ответ: б) $$\frac{13}{80}$$, г) $$\frac{37}{45}$$, е) $$\frac{49}{90}$$