Odpowiedź:
19.
I. 0 II. 0 III. 0
IV.
[tex]6 \frac{1}{5} - 5 \frac{1}{6} = 0[/tex]
V.
[tex]7 \frac{1}{6} - 6 \frac{1}{7} = 0[/tex]
VI.
[tex]8 \frac{1}{7} - 7\frac{1}{8} = 0[/tex]
VI.0 VII.0 IX.0
1.
[tex]1 \frac{1}{2} - \frac{3}{4} = \frac{3}{2} - \frac{3}{4} = \frac{6}{4} - \frac{3}{4} = \frac{3}{4} [/tex]
Odp.B
2.
[tex]4 \frac{4}{5} - 2 \frac{3}{4} = \frac{24}{5} - \frac{11}{4} = \frac{96}{20} - \frac{55}{20} = \frac{41}{20} = 2 \frac{1}{20} [/tex]
Odp. B
3. a)
[tex] \frac{1}{4} - \frac{1}{6} = \frac{6}{2} - \frac{4}{24} = \frac{2}{24} = \frac{1}{12} [/tex]
Odp.B
b)
[tex] \frac{24}{24} - ( \frac{6}{24} + \frac{4}{24} ) = \frac{24}{24} - \frac{10}{24} = \frac{14}{24} = \frac{7}{12} [/tex]
Odp.D
