Zuziamajorczyk270420
Rozwiązane

3. Oblicz
1.1 1/2+5/8
2. 1 1/3+2 4/5
3. 4 2/3 + 1 3/8
4. 6 5/7 + 3 2/3
5. 5 4/5 + 2 6/7
6. 6 5/8+ 1 3/5
7. 7 7/8+ 1 5/6
8. 10 5/7 + 3 7/9



Odpowiedź :

Bcdjkme

[tex]1.\\1\frac{1}{2}+\frac{5}{8}= \frac{3}{2}+\frac{5}{8}=\frac{12}{8}+\frac{5}{8}=\frac{17}{8}=1\frac{1}{8}\\\\2.\\1\frac{1}{3}+2\frac{4}{5}=\frac{4}{3}+\frac{14}{5}=\frac{20}{15}+\frac{42}{15}=\frac{62}{15}=4\frac{2}{15}\\\\[/tex]

[tex]3.\\4\frac{2}{3} +1\frac{3}{8}=\frac{14}{3}+\frac{11}{8}=\frac{112}{24}+\frac{33}{24}=\frac{145}{24}=6\frac{1}{24}\\\\4.\\6\frac{5}{7}+3\frac{2}{3}=\frac{47}{7}+\frac{11}{3}=\frac{141}{21}+\frac{77}{21}=\frac{218}{21}=10\frac{8}{21}\\\\[/tex]

[tex]5.\\5\frac{4}{5} +2\frac{6}{7}=\frac{29}{5}+\frac{20}{7}=\frac{203}{35}+\frac{100}{35}=\frac{303}{35}=8\frac{23}{35}\\\\6.\\6\frac{5}{8}+1\frac{3}{5}=\frac{53}{8}+\frac{8}{5}=\frac{265}{40}+\frac{64}{40}=\frac{329}{40}=8\frac{9}{40}[/tex]

[tex]7.\\7\frac{7}{8}+1\frac{5}{6}=\frac{63}{8}+\frac{11}{6}=\frac{189}{24}+\frac{44}{24}=\frac{233}{24}=9\frac{17}{24}\\\\8.\\10\frac{5}{7}+3\frac{7}{9}=\frac{75}{7}+\frac{34}{9}=\frac{675}{63}+\frac{238}{63}=\frac{913}{63}=14\frac{31}{63}[/tex]

Krystynapasek2

Odpowiedź:

1)   1 i 1/2 + 5/8= 1 i 4/8+5/8= 1 i 9/8= 2 i 1/8

2)    1 i 1/3 + 2 i 4/5= 1 i 5/15 + 2 i 12/15= 3 i 17/15= 4 i 2/15

3) 4 i 2/3 + 1 i 3/8= 4 i 16/24 + 1 i 9/24= 5 i 25/24= 6 i 1/24

4)   6 i 5/7 + 3 i 2/3 = 6 i 15/21 + 3 i 14/21= 9 i 29/21= 10 i 8/21

5)   5 i 4/5 + 2 i 6/7= 5 i 28/35 + 2 i 30/35 = 7 i 58/21= 9 i 16/21

6)     6 i 5/8 + 1 i 3/5= 6 i 25/40 + 1 i 24/40= 7 i 49/40= 8 i 9/40

7)   7 i 7/8 + 1 i 5/6= 7 i 21/24 + 1 i 20/24= 8 i 41/24= 17/24

8)    10 i 5/7 + 3 i 7/9=  10 i 45/63 + 3 i 49/63= 13 i 94/63= 14 i 31/63

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