Odpowiedź:
[tex] \frac{1}{2} + 1.5 = 0.5 + 1.5 = 2[/tex]
[tex]3.2 - 1 \frac{1}{3} = 3 \frac{1}{5} - 1 \frac{1}{3} = 3 \frac{3}{15} - 1 \frac{5}{15} = 1 \frac{13}{15} [/tex]
[tex]7.3 - 4 \frac{2}{25} = 7 \frac{3}{10} - 4 \frac{2}{25} = 7 \frac{30}{100} - 4 \frac{8}{100} = 3 \frac{22}{100} = 3.22[/tex]
[tex]2.4 \times \frac{3}{8} = \frac{24}{10} \times \frac{3}{8} = \frac{9}{10} = 0.9[/tex]
[tex]2 \frac{3}{4} \div 2.75 = \frac{11}{4} \div 2 \frac{3}{4} = \frac{11}{4} \times \frac{4}{11} = 1[/tex]
[tex]2.5 \times 2 \frac{1}{2} = 2 \frac{1}{2} \times 2 \frac{1}{2} = \frac{5}{2} \times \frac{5}{2} = \frac{25}{4} = 6 \frac{1}{4} = 6.25[/tex]
