Odpowiedź :
Odpowiedź:
Zadanie 4
a) 11/12 - 5/12 = 6/12 = 1/2
b) 1 i 6/7 - 5/7 = 1 i 1/7
c) 3 i 7/9 - 1 i 5/9 = 2 i 2/9
d) 2 i 4/5 - 1 i 4/5 = 1
4. Oblicz
[tex]a)~~\dfrac{11}{12} -\dfrac{5}{12} =\dfrac{6}{12} =\boxed{\dfrac{1}{2} }[/tex]
[tex]b)~~1\dfrac{6}{7} -\dfrac{5}{7} =\boxed{1\dfrac{1}{7} }[/tex]
[tex]c)~~3\dfrac{7}{9}-1\dfrac{5}{9} =\boxed{2\dfrac{2}{9} }[/tex]
[tex]d)~~2\dfrac{4}{5} -1\dfrac{4}{5} =\boxed{1}[/tex]