Odpowiedź:
A)
[tex] \frac{2}{3} \times 60 = \frac{3}{5} \times \frac{12}{1} = \frac{24}{3} = 8[/tex]
B)
[tex] \frac{4}{7} \times 21 = \frac{4}{7} \times \frac{21}{1} = \frac{84}{7} = 12[/tex]
C)
[tex] \frac{3}{5} \times 60 = \frac{3}{5} \times \frac{60}{1} = \frac{180}{5} = 36[/tex]
D)
[tex] \frac{3}{5} \times 45 = \frac{3}{5} \times \frac{45}{1} = \frac{135}{5} = 27[/tex]
