[tex] \frac{1 }{4} | + \frac{2}{5} \: \: bentuk \: desimalnya \: [/tex]

Jawab:
[tex] \frac{1}{4} + \frac{2}{5} \\ = ( \frac{1}{4} \times \frac{5}{5} ) + ( \frac{2}{5} \times \frac{4}{4} ) \\ = \frac{5}{20} + \frac{8}{20} \\ = \frac{13}{20} \times \frac{5}{5} \\ = \frac{65}{100} = 0.65[/tex]
Semoga membantu^^