Выполни действия : 2/9+5/9; 42/64-27/64; a/n+b/n; 8/11-3/11; 19/75+35/75; x/k-y/k

2/9+5/9 = (2+5)/9 = 7/9 42/64-27/64 =( 42-27)/64 = 15/64 a/n+b/n =(a+b)/n 8/11-3/11= (8-3)/11 = 5/11 19/75+35/75 =(19+35)/75 = 54/75 x/k-y/k =(x-y)/k

2/9+5/9 = (2+5)/9 = 7/9 = [latex] \frac{7}{9} [/latex] [latex]42/64-27/64 = (42-27)/64 = 15/64 = \frac{15}{64} [/latex] [latex]a/n+b/n = (a+b)/n = \frac{a+b}{n} [/latex] [latex]8/11-3/11 = (8-3)/11 = 5/11 = \frac{5}{11} [/latex] [latex]19/75+35/75 = (19+35)/75 = 54/75 = \frac{54}{75} [/latex] [latex]x/k-y/k = (x-y)/k = \frac{x-y}{k} [/latex] Распределительный закон умножения, детка!