Question

Найдите значение выражения 45*(1/9)^2 -14 * 1/9

Answer 1

1). 45*(1/9)^2 = 45*(1/81)= 45/81 = 5/9
2). 14*(1/9) = 14/9
3). 5/9-14/9= (5-14)/9 = (-9)/9 = -1

Answer 2

45*(1/9)^2 -14 * 1/9
45*$frac{1}{81}$-14*$frac{1}{9}$= $frac{45}{1}$*$frac{1}{81}$-$frac{14}{1}$*$frac{1}{9}$= $frac{5}{9}$-$frac{14}{9}$= -$frac{9}{9}$= -1