Odpowiedź :
1. [tex]\frac{3}{8} + \frac{5}{6} -\frac{7}{12} = \frac{9}{24} + \frac{20}{24} -\frac{14}{24} = \frac{29}{24} - \frac{14}{24} = \frac{15}{24} \\[/tex][tex]= \frac{5}{8}[/tex]
2. [tex]2\frac{1}{6} - 1\frac{1}{2} + \frac{1}{8} = \frac{13}{6} - \frac{9}{6} + \frac{1}{8} = \frac{4}{6} +\frac{1}{8} = \frac{16}{24} + \frac{3}{24} = \frac{19}{24}[/tex]
3. [tex]5 \frac{1}{14} - 2 \frac{1}{4} - 1\frac{3}{7} = \frac{71}{14} -\frac{9}{4} - \frac{10}{7} = \frac{142}{28} - \frac{63}{28} - \frac{40}{28} = \frac{79}{28} - \frac{40}{28} = \frac{39}{28} = 1 \frac{11}{28}[/tex]
Odpowiedź:
3/8 + 5/6 - 7/12 = 9/24 + 20/24 - 14/24 = 29/24 - 14/24 = 15/24 = 5/8
2 i 1/6 - 1 i 1/2 + 1/8 = 2 i 4/24 - 1 i 12/24 + 3/24 = 1 i 28/24 - 1 i 12/24 + 3/24 = 16/24 + 3/24 = 19/24
5 i 1/14 - 2 i 1/4 - 1 i 3/7 = 5 i 2/28 - 2 i 7/28 - 1 i 12/28 = 4 i 30/28 - 2 i 7/28 - 1 i 12/28 = 2 i 23/28 - 1 i 12/28 = 1 i 11/28