Question

realize as operaçoes abaixo/ pf me ajude e urgente


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

b)12-5/9=

c)2x3/4x1/2=

Answer 1

a)2/3+1/3+1/2+1/4+3+4
3/3+1/2+1/4+3+4  ⇒  3/3=1   ⇒1/2+1/4 (tira mmc=4)
1+3/4+3+4
8+0,75
8,75

b)mmc=9
108-5(tudo dividido por 9)
103/9
11,44...
c)6/4×1/2
6/8
0,75