Question

calcule a soma das frações:
a)1/2+4/5=
b)2/3+7/3=
c)5/6+1/2=
d)9/5+3/4=
e)3/5+8/5=
f)1/3+3/2
g)23/9+30/3=
h)2/3+3/5+5/7=
i)12/5+3/7=
j)3/5+6/7+5/7+8/3=​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 1/2+4/5=  (5+8)/10 = 13/10 ou 1,3

b) 2/3+7/3=  (2+7)/3 = 9/3 = 3

c) 5/6+1/2=  (5+3)/6 = 8/6 = 4/3 ou 1,333

d) 9/5+3/4=  (36+15)/20 = 51/20 ou 2,55

e) 3/5+8/5=  (3+8)/5 = 11/5 ou 2,2

f) 1/3+3/2  = (2+9)/6 = 11/6 ou 1,833

g) 23/9+30/3=  (23+90)/9 = 113/9 ou 12,555

h) 2/3+3/5+5/7=  (70+63+75)/105 = 208/105

i) 12/5+3/7=  (84+15)/35 = 99/35 ou 2,828

j) 3/5+6/7+5/7+8/3 = (63+90+75+280)/105 = 508/105 ou 4,838