Oblicz.

[tex]3 - \frac{2}{5} [/tex]
[tex]8 - \frac{23}{25} [/tex]
[tex]7 -4 \frac{2}{25} [/tex]
[tex]25 - 17 \frac{3}{5} [/tex]
[tex]5 \frac{3}{6} - 2[/tex]
[tex]107 \frac{13}{5} - 13[/tex]


Odpowiedź :

Odpowiedź:

[tex]3-\frac{2}{5}=2\frac{5}{5}-\frac{2}{5}=2\frac{3}{5}\\\\8-\frac{23}{25}=7\frac{25}{25}-\frac{23}{25}=7\frac{2}{25}\\\\7-4\frac{2}{25}=6\frac{25}{25}-4\frac{2}{25}=2\frac{23}{25}\\\\25-17\frac{3}{5}=24\frac{5}{5}-17\frac{3}{5}=7\frac{2}{5}\\\\5\frac{3}{6}-2=3\frac{3}{6}=3\frac{1}{2}\\\\107\frac{13}{5}-13=107+2\frac{3}{5}-13=109\frac{3}{5}-13=96\frac{3}{5}[/tex]