Question

mmc a)2/3 + 3/4

b) 1/3 + 3/5
c)2/4+7/8
d) 2/5 + 3/8
e)4/5+3/4
f)1/3 + 3/4
ajudem aiii

Answer 1

1 - (-2/3) (3/4) = 
1 + (2/3)(3/4) = (Simplificando a multiplicação, podemos escrever: ) 
1 + (2/4) = 
1 + (1/2) = 
1 + 1/2 = 
2+1 /2 = 
3/2