Scrieti sub forma de numar zecimal fractia. 13 supra 20 . 7 intregi si 5 optimi . 14 supra 25 .

Răspuns :

13/20 = 65/100 = 0,65

7*5/8 = 61/8 = 7,625

14/25 = 56/100 = 0,56
[tex] \frac{13}{20} = 0.65[/tex]

[tex]7 \frac{5}{8} = \frac{7 \times 8 + 5}{8} = \frac{56 + 5}{8} = \frac{61}{8} = 7.62[/tex]

[tex] \frac{14}{25} = 0.56[/tex]