Zadanie 1
a) [tex]\frac{5}{8} + \frac{1}{12} = \frac{15}{24} + \frac{2}{24} = \frac{17}{24}[/tex]
b) [tex]1\frac{3}{8} + 3\frac{3}{4} = \frac{11}{8} + \frac{15}{4} = \frac{11}{8} + \frac{30}{8} = \frac{41}{8} = 5\frac{1}{8}[/tex]
c) [tex]\frac{13}{15} - \frac{5}{6} = \frac{26}{30} - \frac{25}{30} = \frac{1}{30}[/tex]
d) [tex]5\frac{2}{7} - 2\frac{1}{3} = \frac{37}{7} - \frac{7}{3} = \frac{111}{21} - \frac{49}{21} = \frac{62}{21} = 2\frac{20}{21}[/tex]
Zadanie 2 i 3 - załącznik.
