Odpowiedź:
[tex] \frac{1}{5} \times 40 = 8[/tex]
[tex] \frac{1}{3} \times 21 = 7[/tex]
[tex] \frac{1}{4} \times 100 = 25[/tex]
[tex] \frac{3}{4} \times 60 = 45[/tex]
[tex]1 \frac{3}{4} \times 1000 = \frac{7 }{4} \times 1000 = \frac{7000}{4} = 1750[/tex]