Question

Calcule as expressões: a) (-1/2).(-2/3).(-3/7)= b) (-2/5).(-3/2).(-8/5)= c) (1/2).(-1/2).(-1/5)= d) (-1).(+5/3).(+3/5)= e) (+7).(-1/7).(+7)=

Answer 1

A) (-1/2) × (-2/3) × (-3/7)
(2/6) × (-3/7)
(-6/42) ou (-1/7)

B) (-2/5) × (-3/2) × (-8/5)
(6/10) × (-8/5)
(-48/50) ou (-24/25)

C) (1/2) × (-1/2) × (-1/5)
(-1/4) × (-1/5)
(1/20)

D) (-1) × (+5/3) × (+3/5)
(-5/3) × (+3/5)
(-15/15) ou 1

E) (+7) × (-1/7) × (+7)
(-7/7) × (+7)
(-49/7) ou 7

Espero ter ajudado