Question

A) 8/9 - 4/3 =


B) 8/9 + 4/3 =


DUVIDA: MMC DE 9/3

Answer 1

Explicação passo-a-passo:

A) 8/9 - 4/3 =

mmc (9,3)= 9

(8-3.4)/9= (8-12)/9= - 4/9

9,3:3

3,1:3

1,1

= 3.3

= 9

B) 8/9 + 4/3 =

mmc (9,3)= 9

= (8+3.4)/9

= (8+12)/9

= 20/9