Question

Sabendo que x = 0,612612... e que y = 1,7171... o valor de x+y é:

Answer 1

Boa tarde

x = 0,6126126126...  

x = 6/10 + 0.0126126126...  

k = 0.0126126126.
10k = 0.126126126...
10000k = 126.126126126...
9990k = 126
k = 126/9990 = 7/555 

x = 6/10 + 7/555 
x = (6*555 + 7*10)/5550 = 3400/5550
x = 68/111

y = 1.7171 
y = 1 + 71/99 = 170/99 

x + y = 68/111 + 170/99 
x + y = (68*99 + 170*111)/(111*99)
x + y = 8534/3663