Obliczenia
[tex]1\frac{2}{3}-\frac{1}{6}=1\frac{4}{6}-\frac{1}{6}=1\frac{3}{6}=1\frac{1}{2}\\\\12\cdot4\frac{5}{8}=12\cdot\frac{37}{8}=3\cdot\frac{37}{2}=\frac{111}{2}=55\frac{1}{2}\\\\2\frac{5}{6}\cdot\frac{3}{17}=\frac{\not17^1}{\not6_2}\cdot\frac{\not3^1}{\not17_1}=\frac{1}{2}\\\\11\frac{2}{3}\cdot\frac{3}{7}=\frac{\not35^5}{\not3_1}\cdot\frac{\not3^1}{\not7_1}=5[/tex]
