September 2018 1 28 Report
Encuentra el numero que debe ir en cada espacio para que la igualdad sea verdadera

a) (1/2) x ( __ ) = 1/2

b) (1/2) x ( __ ) = -1/2

c) (-1/2) x ( __ ) = 1/2

d) (2/3) x ( __ ) = 1

e) (3/4) x ( __ ) = -5/6

f) (-3/7) x ( __ ) = 2

g) ( __ ) x (3/4) = 14/25

h) ( __ ) x (-16/3) = 48/7

i) (4/11) / ( __ ) = 9

j) (-2/3) / ( __ ) = 4/7


doy 20 pts.

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