Question

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

Answer 1

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

Answer 2

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