Răspuns:
a) 2•40=5•16
80=80
[tex] = > [/tex]
[tex] \frac{2}{5} = \frac{16}{40} [/tex]
b) 7•20=4•35
140=140
[tex] = > [/tex]
[tex] \frac{7}{4} = \frac{20}{35} [/tex]
c) 5•72=8•45
360=360
[tex] = > [/tex]
[tex] \frac{5}{8} = \frac{45}{72} [/tex]
d) 9•56=8•63
504=504
[tex] = > [/tex]
[tex] \frac{9}{8} = \frac{63}{56} [/tex]