Odpowiedź :
Odpowiedź:
a) 4 i 3/7 + 1 i 1/5= 4 i 15/35 + 1 i 7/35= 5 i 22/35
b) 5 i 2/3 - 2 i 1/4= 5 i 8/12- 2 i 3/12= 3 i 5/12
c) 4 i 3/10 - 2 i 1/5= 4 i 3/10- 2 i 2/10= 2 i 1/10
d) 3 i 2/9 + 1 i 5/6 = 3 i 4/18 + 1 i 15/18= 4 i 19/18= 5 i 1/18
e) 7 i 3/4 - 5 i 1/3= 7 i 9/12 - 5 i 4/12= 2 i 5/12
f) 4 i 2/15 + 2 i 7/10= 4 i 4/30 + 2 i 21/30= 6 i 25/30= 6 i 5/6
g) 11 i 1/11 + 3 i 2/33= 11 i 3/33 + 3 i 2/33= 14 i 5/33
h) 4 i 5/7 - 1 i 1/2= 4 i 10/14- 1 i 7/14= 3 i 3/14
i) 2 i 3/7 -2/5= 2 i 15/35 - 14/35 = 2 i 1/35
Szczegółowe wyjaśnienie:
Odpowiedź:
a) [tex]4\frac{3}{7} +1\frac{1}{5}=4\frac{15}{35}+1\frac{7}{35}=5\frac{22}{35} \\[/tex]
b) [tex]5\frac{2}{3} -2\frac{1}{4}=5\frac{8}{12}-2\frac{3}{12}=3\frac{5}{12}[/tex]
c) [tex]4\frac{3}{10} -2\frac{1}{5}=4\frac{3}{10} -2\frac{2}{10}=2\frac{1}{10}[/tex]
d) [tex]3\frac{2}{9} +1\frac{5}{6}=3\frac{4}{18} +1\frac{15}{18}=4\frac{19}{18}=5\frac{1}{18}[/tex]
e) [tex]7\frac{3}{4} -5\frac{1}{3}=7\frac{9}{12} -5\frac{4}{12}=2\frac{5}{12}[/tex]
f) [tex]4\frac{2}{15} +2\frac{7}{10} =4\frac{4}{30}+2\frac{21}{30} =6\frac{25}{30}[/tex]
g) [tex]11\frac{1}{11} +3\frac{2}{33} =11\frac{3}{33} +3\frac{2}{33} =14\frac{5}{33}[/tex]
h) [tex]4\frac{5}{7} -1\frac{1}{2} =4\frac{10}{14} -1\frac{7}{14} =3\frac{3}{14}[/tex]
i) [tex]2\frac{3}{7} -\frac{2}{5} =2\frac{15}{35} -\frac{14}{35} =2\frac{1}{35}[/tex]
Szczegółowe wyjaśnienie: