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Potrzebuje na teraz
(4 zad nie)



Potrzebuje Na Teraz 4 Zad Nie class=

Odpowiedź :

Leitisisle
  • b)

[tex]3\frac{1}{2}+ \frac{1}{4} = 3\frac{2}{4} + \frac{1}{4} = 3\frac{3}{4}[/tex]

[tex]2\frac{3}{4} - \frac{1}{2} = 2\frac{3}{4} - \frac{2}{4} = 2\frac{1}{4}[/tex]

[tex]13\frac{3}{4} - 5\frac{1}{2} = 13\frac{3}{4} - 5\frac{2}{4} = 8\frac{1}{4}[/tex]

[tex]2\frac{1}{4} + 7\frac{1}{2} = 2\frac{1}{4} + 7\frac{2}{4} = 9\frac{3}{4 }[/tex]

  • Zadanie 2

[tex]\frac{1}{4} + \frac{5}{8} = \frac{2}{8} + \frac{5}{8} = \frac{7}{8}[/tex]

[tex]\frac{5}{6} - \frac{2}{3} = \frac{5}{6} - \frac{4}{6} = \frac{1}{6}[/tex]

  • Zadanie 3

a) [tex]\frac{3}{5} + \frac{1}{10} = \frac{6}{10} + \frac{1}{10} = \frac{7}{10}[/tex]

b) [tex]\frac{2}{3} + \frac{1}{6} = \frac{4}{6} + \frac{1}{6} = \frac{5}{6}[/tex]

c) [tex]1\frac{5}{6} + 4\frac{1}{12} = 1\frac{10}{12} + 4\frac{1}{12} = 5\frac{11}{12}[/tex]

d) [tex]\frac{4}{5} - \frac{3}{10} = \frac{8}{10} - \frac{3}{10} = \frac{5}{10}[/tex]

e) [tex]\frac{8}{3} - \frac{8}{9} = \frac{24}{9} - \frac{8}{9} = \frac{16}{9} = 1\frac{7}{9}[/tex]

f) [tex]2\frac{1}{2} - \frac{1}{4} = 2\frac{2}{4} - \frac{1}{4} = 2\frac{1}{4}[/tex]

Krystynapasek2

Odpowiedź:

b)  3 i 1/2 + 1/4= 3 i 2/4 + 1/4= 3 i 3/4

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

  13 i 3/4 - 5 i 1/2= 13 i 3/4 - 5 i 2/4=  8 i 1/4

 2 i 3/4 +7 i 1/2= 2 i 3/4 + 7 i 2/4=9 i 5/4= 10 i 1/4

zad.2

 1/4 + 5/8= 2/8+5/8= 7/8

  5/6 - 2/3= 5/6- 4/6= 1/6

zad.3

a)  3/5+1/10= 6/10+1/10= 7/10

b) 2/3 + 1/6= 4/6 + 1/6= 5/6

c)  1 i 5/6 + 4 i 1/12= 1 i 10/12 + 4 i 1/12= 5 i 11/12

d)  4/5- 3/10= 8/10-3/10= 5/10= 1/2

e)   8/3-8/9= 24/9- 8/9= 16/9= 1 i 7/9

f)   2 i 1/2 -1/4= 2 i 2/4- 1/4= 2 i 1/4

Szczegółowe wyjaśnienie:

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