Question

Sendo a=1/2; b=3/5 e c=1/4

a+b+c=

a+(c-b)=

Answer 1

Resposta:

a+b+c=27

a+(c-b)=

Explicação passo-a-passo:

MMC DE 2,5,4=20;

10/20+12/20+5/20=27/20.

10/20+(5/20-12/20)

10/20+ (-7/20)

10/20-7/20=3/20.