Odpowiedź:
[tex](1 \frac{1}{2} ) {}^{2} = 1 \frac{1}{2} \times 1 \frac{1}{2} = \frac{3}{2} \times \frac{3}{2} = \frac{9}{4} = 2 \frac{1}{4} \\ \\ (2 \frac{1}{3} ) {}^{2} = 2 \frac{1}{3} \times 2 \frac{1}{3} = \frac{7}{3} \times \frac{7}{3} = \frac{49}{9} = 5 \frac{4}{9} [/tex]
