Odpowiedź :
a) 0,75 * 1/4 = 3/4 * 1/4 = 3/16
b) 0,8 - 3/5 = 4/5 - 3/5 = 1/5
c) 1/8 + 0,25 = 1/8 + 1/4 = 3/8
d) 0,3 : 1/3 = 3/10 * 3 = 9/10
Odpowiedź:
[tex]0,75\cdot\frac{1}{4}=\frac{75}{100}\cdot\frac{1}{4}=\frac{3}{4}\cdot\frac{1}{4}=\frac{3}{16}\\\\\\0,8-\frac{3}{5}=\frac{8}{10}-\frac{3}{5}=\frac{4}{5}-\frac{3}{5}=\frac{1}{5}\\\\\\\frac{1}{8}+0,25=\frac{1}{8}+\frac{25}{100}=\frac{1}{8}+\frac{1}{4}=\frac{1}{8}+\frac{2}{8}=\frac{3}{8}\\\\\\0,3:\frac{1}{3}=\frac{3}{10}\cdot3=\frac{3\cdot3}{9}= \frac{9}{10}[/tex]