Question

Determine esta fração: 1-(2/3)²=

Answer 1

1 - (2/3)^2 = 1 - 4/9
MMC ( 9 e 1 ) = 9

9/9 - 4/9 = 5/9

Answer 2

$1-(\frac{2}{3})^{2} = 1-\frac{4}{9}=\frac{9-4}{9}=\frac{5}{9}$