Question

$\frac{18}{160} + \frac{3}{40} + \frac{33}{320} + \frac{5}{64} =$

Answer 1

Amplifici sa ajungi la acelasi numitor-este 320
La $\frac{18}{160}$ amplifici cu 2
La$\frac{3}{40}$ amplifici cu 8
La $\frac{5}{64}$ amplifici cu 5
Si avem...
$\frac{18*2+3*8+5*5}{320} = \frac{36+24+15}{320} = \frac{85}{320}$
Apoi simplificam cu 5 $\frac{17}{64}$

Answer 2

36/320 + 24/320 + 33/320 + 25/320 = 98/320 =49/160