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 = 7/942/64-27/64 =( 42-27)/64 = 15/64a/n+b/n =(a+b)/n8/11-3/11= (8-3)/11 = 5/1119/75+35/75 =(19+35)/75 = 54/75x/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!