Odpowiedź:
a) [tex]\frac{3}{9}[/tex] = [tex]\frac{6}{18}[/tex] [tex]\frac{2}{7\\}[/tex] = [tex]\frac{8}{28}[/tex]
b) [tex]1\frac{5}{7}[/tex] = [tex]1\frac{25}{35}[/tex] [tex]2\frac{5}{13}[/tex] = [tex]2\frac{15}{39}[/tex]
c) [tex]\frac{25}{45}[/tex] = [tex]\frac{5}{9}[/tex] [tex]\frac{16}{40}[/tex] = [tex]\frac{2}{5}[/tex]
d)[tex]4\frac{24}{40}[/tex] = [tex]4\frac{3}{5}[/tex] [tex]5\frac{30}{48}[/tex] = [tex]5\frac{5}{8}[/tex]
Szczegółowe wyjaśnienie:
a) 18 ÷ 9 = 2 --> 3 × 2 = 6
28 ÷ 7 = 4 --> 4 × 2 = 8
b) 35 ÷ 7 = 5 --> 5 × 5 = 25
39 ÷ 13 = 3 --> 5 × 3 = 15
c) 45 ÷ 9 = 5 --> 25 ÷ 5 = 5
40 ÷ 5 = 8 --> 16 ÷ 8 = 2
d) 24 ÷ 3 = 8 --> 40 ÷ 8 = 5
30 ÷ 5 = 6 --> 48 ÷ 6 = 8
Myślę że pomogłem :-)
