а)

[tex] \frac{45}{72} = \frac{5 \times 9}{8 \times 9} = \frac{5}{8} = 0.625[/tex]

б)

[tex] \frac{56}{224} = \frac{1 \times 56}{4 \times 56} = \frac{1}{4} = 0.25[/tex]

в)

[tex] \frac{126}{198} = \frac{7 \times 18}{11 \times 18} = \frac{7}{11} [/tex]

г)

[tex] \frac{330}{495 } = \frac{2 \times 165}{3 \times 165} = \frac{2}{3} [/tex]

д)

[tex] \frac{108}{1440} = \frac{3 \times 36}{40 \times 36} = \frac{3}{40} = 0.075[/tex]

е)

[tex] \frac{135}{2400} = \frac{9 \times 15}{160 \times 15} = \frac{9}{160} = 0.05625[/tex]