Odpowiedź :
a)
[tex]0.1 \times 0.3 = \frac{1}{10} \times \frac{3}{10} = \frac{3}{100} [/tex]
[tex]0.12 \times 0.4 = \frac{12}{100} \times \frac{4}{10} = \frac{6}{25} \times \frac{1}{5} = \frac{6}{125} [/tex]
b)
[tex]1.1 \times 0.08 = 1 \frac{1}{10} \times \frac{8}{100} = \frac{11}{10} \times \frac{8}{100} = \frac{88}{1000} = \frac{22}{250} [/tex]
[tex]0.81 \times 0.01 = \frac{81}{100} \times \frac{1}{100} = \frac{81}{10000} [/tex]
Odpowiedź:
a) 0,1 *0,3= 1/10*3/10= 3/100
0,12 *0,4= 12/100 *4/10= 3/25*2/5= 6/125
b) 1,1 *0,08= 1 i 1/10* 8/100= 11/10 * 2/25= 22/250
0,81 *0,01= 81/100*1/100= 81/10000
Szczegółowe wyjaśnienie: