Question

Se A= 3/7 , B= 5/2 , C= -13/14 e D= -3 , calcule os valores:

Me ajudeeeeem ´pfv

a) (A+B) - C
b) ( - A + B) - D

Answer 1

A/

(3/7 + 5/2) - (-13/14)

TIRA O MMC

6/14 + 35/14 + 13/14

54/14 FATORANDO DA 27/7

B/ 

(-3/7 + 5/2) - (-3)

TIRA O MMC

-6/14 + 35/2 + 42/14

29/14 + 42/14

71/14