Odpowiedź:
11.
a
[tex]2 \frac{11}{8} - \frac{5}{8} = 2 \frac{6}{5} [/tex]
b
[tex]1 \frac{10}{7} - \frac{4}{7} = \frac{6}{7} [/tex]
c
[tex]7 \frac{7}{5} - \frac{4}{5} = 7 \frac{3}{5} [/tex]
d
[tex]5 \frac{14}{9} - \frac{8}{9 } = 5 \frac{6}{9} [/tex]
12
A
[tex]2 \frac{5}{4} - \frac{3}{4} [/tex]
B
[tex]5 \frac{5}{8} - \frac{7}{8} = 4 \frac{13}{8} - \frac{7}{8} = 4 \frac{6}{8} [/tex]
C
[tex]7 \frac{3}{5} - \frac{4}{5} = 6 \frac{8}{5} - \frac{4}{5} = 6 \frac{3}{5} [/tex]
D
[tex]5 \frac{1}{4} - 2 \frac{3}{4} = 4 \frac{5}{4} - 2 \frac{3}{4} = 2 \frac{2}{4} [/tex]
E
[tex]7 \frac{1}{5} - 3 \frac{3}{5} = 6 \frac{6}{5} - 3 \frac{3}{5} = 3 \frac{2}{5} [/tex]
F
[tex]9 \frac{1}{8} - 2 \frac{7}{8} = 8 \frac{9}{8} - 2 \frac{7}{8} = 6 \frac{2}{8} [/tex]
