Question

Efetue as operações a seguir.

A) 1/2 + 3/2

B) 2/4 + 1/4

C) 6/9 - 4/9

D) 5/7 - 2/7

E) 2/4 + 1/2

F) 5/7 + 7/5

G) 10/12 + 5/6

H) 8/9 - 4/7

I) 7/16 - 1/3

Answer 1

Explicação passo-a-passo:

a) 1/2 + 3/2 = (1+3)/2 =4/2 = 2

b) 2/4 +1/4 = (2+1)/4 = 3/4

c) 6/9 - 4/9 = (6-4)/9 = 2/9

D) 5/7 - 2/7 = (5-2)/7 = 3/7

e) 2/4 +1/2 = ( 2+2)/4 = 4/4 =1

f) 5/7 + 7/5 = (25 +49)/35 = 74/35

g) 10/12+ 5/6 = (10+10) /12 = 20/12= 5/3

h) 8/9 -4/7 = ( 56 - 36)=63 20/63

i) 7/16 - 1/3 = (21 - 16)/48 = 5/48