matma klasa 5 daje naj!!!​

Matma Klasa 5 Daje Naj class=

Odpowiedź :

Odpowiedź:

4 i 3/8+ 2 i 4/8- 1/8= 6 i 7/8-1/8= 6 i 6/8= 6 i 3/4

5 i 6/7 - 3 i 2/7 + 2 i 1/7= 2 i 4/7+ 2 i 1/7= 4 i 5/7

3 i 3/4 - ( 4 i 3/4 - 1 i 2/4)= 3 i 3/4 - 3 i 1/4= 2/4= 1/2

6 i 8/9 - ( 2 i 5/9 + 1 i 1/9)= 6 i 8/9 - 3 i 6/9= 3 i 2/9

1 i 1/6 + 6 i 4/6 - 2 i 3/6= 7 i 5/6- 2 i 3/6= 5 i 2/6= 5 i 1/3

12 i 4/6 - 3 i 1/5 - 4 i 3/5= 12 i 20/30- 3 i 6/30 - 4 i 18/30=

=  12 i 20/30- 7 i 24/30= 11 i 50/30- 7 i 24/30= 4 i 26/30= 4 i 13/15

Szczegółowe wyjaśnienie:

Odpowiedź:

[tex]4\frac{3}{8}+2\frac{4}{8}-\frac{1}{8}=6\frac{7}{8}-\frac{1}{8}=6\frac{6}{8}=6\frac{3}{4}\\\\5\frac{6}{7}-3\frac{2}{7}+2\frac{1}{7}=2\frac{4}{7}+2\frac{1}{7}=4\frac{5}{7}\\\\3\frac{3}{4}-(4\frac{3}{4}-1\frac{2}{4})=3\frac{3}{4}-3\frac{1}{4}=\frac{2}{4}=\frac{1}{2}\\\\6\frac{8}{9}-(2\frac{5}{9}+1\frac{1}{9})=6\frac{8}{9}-3\frac{6}{9}=3\frac{2}{9}\\\\1\frac{1}{6}+6\frac{4}{6}-2\frac{3}{6}=7\frac{5}{6}-2\frac{3}{6}=5\frac{2}{6}=5\frac{1}{3}[/tex]

[tex]12\frac{4}{6}-3\frac{1}{5}-4\frac{3}{5}=12\frac{2}{3}-7\frac{4}{5}=12\frac{10}{15}-7\frac{12}{15}=11\frac{25}{15}-7\frac{12}{15}=4\frac{13}{15}[/tex]

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