Question

Problemas envolvendo numeros racionais
Resolva as operações

Answer 1

A)MMC= 35

(-21/35) + (-5/35) = -26/35

B)MMC=21

6/21 + (-7/21) - 21/21 = -22/21

C)MMC=10

0,2= 1/5

2/10 - ( -2/10) + 5/10= 9/10

D)MMC= 15

(-5/15) - (- 6/15) + (10/15) - 15/15= -4/15

OBS: - com - = +