Odpowiedź :
Odpowiedź:
[tex] \frac{2}{7} \div \frac{5}{9} = \frac{2}{7} \times \frac{9}{5} = \frac{18}{35} [/tex]
[tex] \frac{3}{5} \div \frac{7}{11} = \frac{3}{5} \times \frac{11}{7} = \frac{33}{35} [/tex]
[tex] \frac{1}{11} \div \frac{7}{10} = \frac{1}{11} \times \frac{10}{7} = \frac{10}{77} [/tex]
[tex] \frac{5}{7} \div \frac{3}{8} = \frac{5}{7} \times \frac{8}{3} = \frac{40}{21} = 1 \frac{19}{21} [/tex]
[tex] \frac{1}{9} \div \frac{4}{5} = \frac{1}{9} \times \frac{5}{4} = \frac{5}{36} [/tex]
[tex] \frac{4}{7} \div \frac{5}{9} = \frac{4}{7} \times \frac{9}{5} = \frac{36}{35} = 1 \frac{1}{35} [/tex]
[tex] \frac{4}{9} \div \frac{5}{7} = \frac{4}{9} \times \frac{7}{5} = \frac{28}{45} [/tex]
[tex] \frac{4}{7} \div \frac{3}{11} = \frac{4}{7} \times \frac{11}{3} = \frac{44}{21} = 2 \frac{1}{22} [/tex]
[tex] \frac{1}{9} \div \frac{5}{6} = \frac{1}{9} \times \frac{6}{5} = \frac{6}{45} = \frac{2}{15} [/tex]
[tex] \frac{4}{25} \div \frac{2}{15} = \frac{4}{25} \times \frac{15}{2} = \frac{60}{50} = \frac{6}{5} = 1 \frac{1}{5} [/tex]
[tex] \frac{4}{9} \div \frac{6}{7} = \frac{4}{9} \times \frac{7}{6} = \frac{28}{54} = \frac{14}{27} [/tex]
[tex] \frac{4}{7} \div \frac{2}{21} = \frac{4}{7} \times \frac{21}{2} = \frac{84}{14} = 6[/tex]
[tex] \frac{2}{7} \div \frac{4}{9} = \frac{2}{7} \times \frac{9}{4} = \frac{18}{28} = \frac{9}{14} [/tex]
[tex] \frac{2}{5} \div \frac{6}{15} = \frac{2}{5} \times \frac{15}{6} = \frac{30}{30 } = 1[/tex]
[tex] \frac{3}{7} \div \frac{9}{14} = \frac{3}{7} \times \frac{14}{9} = \frac{42}{63} = \frac{6}{9} = \frac{2}{ 3} [/tex]
[tex] \frac{4}{7} \div \frac{2}{3} = \frac{4}{7} \times \frac{3}{2} = \frac{12}{14} = \frac{6}{7} [/tex]
Odpowiedź:
a) 2/7 : 5/9= 2/7 *9/5= 18/35
b) 3/5 : 7/11 =3/5 * 11/7= 33/35
c) 1/11 : 7/10= 1/11 *10/7=10/77
d) 5/7 : 3/8= 5/7*8/3= 40/21 = 1 i 19/21
e) 1/9 :4/5= 1/9 *5/4= 5/36
f) 4/7 : 5/9 = 4/7 *9/5= 36/ 35= 1 i 1/35
g) 4/9 : 5/7= 4/9 *7/5= 28/45
h) 4/7 : 3/11= 4/7 *11/3= 44/21= 2 i 2/21
Poziom
1/9 :5/6= 1/9* 6/5 ( skracamy 6 i 9 przez 3)= 1/3*2/5= 2/15
b) 4/25 : 2/15= 4/25 *15/2( skr... 4 i 2 przez 2 , oraz 25 i 15 przez 5)=
= 2/5*3= 6/5= 1 i 1/5
c) 4/9 : 6/7= 4/9 *7/6( skr.. 4 i 6 przez 2)= 2/9 *7/3= 14/27
d) 4/7 : 2/21= 4/7 *21/2( skr.. 4 i 2 przez2 ,oraz 7 i 21 przez 7)= 2*3=6
e) 2/7 : 4/9= 2/7 *9/4( skr.. 2 i 4 przez 2)= 1/7*3/2= 3/14
f) 2/5 : 6/15= 2/5 *15/6( skr.. 5 i 15 przez 5, oraz 2 i 6 przez 2)=3/2= 1 i 1/2
g) 3/7 : 9/14= 3/7 *14/9( skr... 3 i 9 przez 3, oraz 7 i 14 przez 7)= 2/3
h) 4/7 : 2/3= 4/7 *3/2( skr.. 4 i 2 przez 2)= 2/7*3= 6/7
Szczegółowe wyjaśnienie: