A) (1/2)⁷+(1/2)⁸+(2/5)³

B) (2/3)³+(2/5)⁴+(3/4)²-(5/7)²

C) (5/8)²+(5/8)²-(3/7)²-(5/9)²

D) (3/4)²-(2/7)³

E) (5/9)²÷(2/7)²

F) (1/2)⁷×(2/5)²

G) (2/5)²÷(2/13)²

H) (4/5)²÷(3/7)³

I) (1/2)³-(5/17)²

J) (3/11)²÷(5/17)²

K) (2/5)³×(9/13)²

L) (7/15)²×(9/20)²

m) (5/6)²÷(7/30)²



me ajudem respondendo pelomenos uma!!​