1.
[tex] \frac{3}{8} \times \frac{4}{7} = \frac{3}{2} \times \frac{1}{7 } = \frac{3}{14} [/tex]
Odpowiedź: C
2.
a)
[tex] \frac{16}{25} = \frac{64}{100} = 0.64[/tex]
b)
[tex] \frac{11}{20} = \frac{55}{100} = 0.55[/tex]
c)
[tex]2 \frac{9}{125} = 2 \frac{72}{1000} = 2.072[/tex]
d)
[tex]4 \frac{17}{40} =4 \frac{425}{1000} = 4.425[/tex]
Odpowiedź:
3/8 * 4/7 = 3/14 Odp C
16/25 = 64/100 = 0,64
11/20 = 55/100 = 0,55
2 i 9/125 = 259/125 = 2,072
4 i 17/40 = 177/40 = 4,425
