Question

1 )Caucule a soma das frações:

a)1/2+4/5=

b)2/3+7/3=

c)5/6+1/2=

d)9/5+1/2=

e)3/5+8/5=

f)1/3+3/2=

g)12/5+3/7=

h)23/9+30/3

i)2/3+3/5+5/7=

j)3/5+6/7+5/7+8/3=​

Answer 1

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+1/2= (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)12/5+3/7= (84+15)/35 = 99/35 ou 2,828

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

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

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

Espero ter ajudado;)