a)
[tex] \frac{1}{5} \times 40 = \frac{1}{1} \times 8 = 8[/tex]
b)
[tex] \frac{1}{3} \times 21 = \frac{1}{1} \times 7 = 7[/tex]
c)
[tex] \frac{1}{4} \times 100 = \frac{1}{1} \times 25 = 25[/tex]
d)
[tex] \frac{3}{4} \times 60 = \frac{3}{1} \times 15 = 45[/tex]
e)
[tex]1 \frac{3}{4} \times 1000 = \frac{7}{4} \times 1000 = \frac{7}{1} \times 250 = 1750[/tex]
Myślę że pomogłem ;)
