Odpowiedź :
Odpowiedź:
d) 1 i 1/12 +1 i 2/5-3/20= 1 i 5/60 + 1 i 24/60- 9/60= 2 i 29/60- 9/60=
= 2 i 20/60= 2 i 1/3
f) 1/3 *2/3= 2/9
g) 1/2 *1/3*1/4= 1/24
h) 1 i 1/2 *1 i 1/2= 3/2*3/2= 9/4= 2 i 1/4
i) 4/9 : 1/3= 4/9*3= 12/9= 1 i 3/9= 1 i 1/3
i) 4/3:1/3= 4/3*3= 12/3=4
Szczegółowe wyjaśnienie:
[tex]d) \ 1\frac{1}{12}+1\frac{2}{5}-\frac{3}{20} = 1\frac{5}{60}+1\frac{24}{60}-\frac{9}{60} = 2\frac{29}{60} -\frac{9}{60} = 2\frac{20}{60} = 2\frac{1}{3}\\\\f) \ \frac{1}{3}\cdot\frac{2}{3} = \frac{2}{9}\\\\g) \ \frac{1}{2}\cdot\frac{1}{3}\cdot\frac{1}{4} = \frac{1}{24}\\\\h) \ 1\frac{1}{2}\cdot1\frac{1}{2} = \frac{3}{2}\cdot\frac{3}{2} = \frac{9}{4} = 2\frac{1}{4}\\\\i) \ \frac{4}{3}:\frac{1}{3} = \frac{4}{3}\cdot3 = 4[/tex]