Odpowiedź:
1.
a)
[tex]\frac{1}{2} +\frac{1}{2}x\frac{1}{2}\\ \frac{1}{2}+\frac{1}{4}\\ \frac{3}{4}[/tex]
b)
[tex]\frac{1}{3}-\frac{1}{3}+\frac{1}{3}\\ 0+\frac{1}{3}\\ \frac{1}{3}[/tex]
c)
[tex](\frac{1}{4}+\frac{1}{4}):\frac{1}{4}\\ \frac{1}{2}x4\\ 2[/tex]
d)
[tex]\frac{1}{5}:\frac{1}{5}-\frac{1}{5}\\ 1-\frac{1}{5}\\ \frac{4}{5}[/tex]
e)
[tex]\frac{1}{6}-\frac{1}{6}x\frac{1}{6}\\ \frac{1}{6}-\frac{1}{36}\\ \frac{5}{36}\\[/tex]
f)
[tex]\frac{1}{7}x(\frac{1}{7}+\frac{1}{7})\\ \frac{1}{7}x\frac{1}{7}\\ \frac{2}{49}\\[/tex]
3
a)
[tex](\frac{1}{5})^{2}\\ \frac{1}{5}x\frac{1}{5}=\frac{1}{25}[/tex]
b)
[tex](\frac{2}{5})^{3}\\ \frac{2}{5}x\frac{2}{5}x\frac{2}{5}=\frac{8}{125}[/tex]
c)
[tex](1\frac{2}{5})^{2}\\ \frac{7}{5}x\frac{7}{5}=\frac{49}{25}[/tex]
d)
[tex](2\frac{1}{2})^{3} \\ \frac{5}{2}x\frac{5}{2}x\frac{5}{2}=\frac{125}{8}\\[/tex]
Szczegółowe wyjaśnienie:
