Zadanie 8 strona 128 podręcznik wokół nas kl. 6



Odpowiedź :

Magda

Odpowiedź:

[tex]a)\\\\3-1\frac{5}{6}=2\frac{6}{6}-1\frac{5}{6}=1\frac{1}{6}\\\\2\frac{3}{8}-\frac{5}{8}=1\frac{11}{8}-\frac{5}{8}=1\frac{6}{8}=1\frac{3}{4}\\\\4\frac{1}{6}-2\frac{5}{6}=3\frac{7}{6}-2\frac{5}{6}=1\frac{2}{6}=1\frac{1}{3}[/tex]

[tex]b)\\\\1\frac{5}{9}+2\frac{1}{3}+3\frac{1}{6}=1\frac{10}{18}+2\frac{6}{18}+3\frac{3}{18}=6\frac{19}{18}=7\frac{1}{18}\\\\4\frac{5}{6}+1\frac{1}{6}+2\frac{3}{6}=7\frac{9}{6}=8\frac{3}{6}=8\frac{1}{2}\\\\3\frac{4}{5}+2\frac{1}{2}+\frac{7}{10}=3\frac{8}{10}+2\frac{5}{10}+\frac{7}{10}=5\frac{20}{10}=5+2=7[/tex]

[tex]c)\\\\3\frac{5}{8}+1\frac{3}{4}+2\frac{1}{2}=3\frac{5}{8}+1\frac{6}{8}+2\frac{4}{8}=6\frac{15}{8}=7\frac{7}{8}\\\\4\frac{1}{6}-1\frac{3}{5}+2\frac{1}{2}=4\frac{5}{30}-1\frac{18}{30}+2\frac{15}{30}=6\frac{20}{30}-1\frac{18}{30}=5\frac{2}{30}=5\frac{1}{15}\\\\4\frac{1}{2}-2\frac{3}{5}-1\frac{2}{3}=4\frac{15}{30}-2\frac{18}{30}-1\frac{20}{30}=3\frac{45}{30}-2\frac{18}{30}-1\frac{20}{30}=\frac{7}{30}[/tex]

Odpowiedź:

a} 3-1 5/6= 1  1/6

2 3/8-5/8= 1 6/8

4 1/6-2 5/6= 1 2/6

b} 1 5/9+2 1/3+3 1/6= 7 0,5/9

4 5/6+ 1  1/6+2 3/6= 8 3/6

3 4/5+2 1/2+7/10=7

c} 3 5/8+11 3/4+2 1/2= 7  7/8

4 1/6-1 3/5-2 1/2= 5 2/30

4 1/2-2 3/5-1  1/3= 7/30

Szczegółowe wyjaśnienie: