Odpowiedź:
2 2/3:4/7=8/3*7/4=14/3=4 2/3
b] 2 1/4:4/5=9/4*5/4=45/16=2 13/16
c] 3 4/5:2/3=19/5*3/2=57/10=5 7/10
d] 3 1/2 :2 2/5=7/2:12/5=7/2*5/12=35/24=1 11/24
e] 3/4:1 2/3= 3/4:5/3=3/4*3/5=9/20
f] 9/10 : 2 3/4=9/10:11/4=9/10*4/11=36/110=18/55
Szczegółowe wyjaśnienie:
Hej!
[tex]2 \frac{2}{3} \div \frac{4}{7} = \frac{8}{3} \times \frac{7}{4} = \frac{14}{3} = 4 \frac{2}{3} [/tex]
[tex]2 \frac{1}{4} \div \frac{4}{5} = \frac{9}{4} \times \frac{5}{4} = \frac{45}{16} = 2 \frac{13}{16} [/tex]
[tex]3 \frac{4}{5} \div \frac{2}{3} = \frac{19}{5} \times \frac{3}{2} = \frac{57}{10} = 5 \frac{7}{10} [/tex]
[tex]3 \frac{1}{2} \div 2 \frac{2}{5} = \frac{7}{2} \div \frac{12}{5} = \frac{7}{2} \times \frac{5}{12} = \frac{35}{24} = 1 \frac{11}{24} [/tex]
[tex] \frac{3}{4} \div 1 \frac{2}{3} = \frac{3}{4} \div \frac{5}{3} = \frac{3}{4} \times \frac{3}{5} = \frac{9}{20} [/tex]
[tex] \frac{9}{10} \div 2 \frac{3}{4} = \frac{9}{10} \div \frac{11}{4} = \frac{9}{10} \times \frac{4}{11} = \frac{18}{55} [/tex]
Pozdrawiam! - Julka
