Question

calcule o valor das expressoes A-2/5 + 1/2 -1/3B-3/4 .5/6 +1/2C-2/3+1/4 .3D- 3/4:1/2-2/3E-3/5 + 1/5 : 1/10F-21/2 + 3/2 .1/2

Answer 1

Boa noite

A-  2/5 + 1/2 -1/3 = 12/30 + 15/30 - 10/30 = 17/30 

B-  3/4 * 5/6 + 1/2 = 15/24 + 12/24 = 27/24 

C-  2/3 +1/4 * 3 = 2/3 + 3/4 = 8/12 + 9/12 = 17/12 

D-  (3/4)/(1/2) - 2/3 = 3/2 - 2/3 = 9/6 - 4/6 = 5/6 

E-  3/5 + (1/5)/(1/10) = 3/5 + 2 = 13/5 

F-  21/2 + 3/2 * 1/2 = 42/4 + 3/4 = 45/4 

Answer 2

Resposta:

17/30 lllllllllllllllllllllllllllllllllllllllllllllll