Odpowiedź:
[tex]\frac{1}{10}+\frac{3}{10}=\frac{4}{10}=\frac{2}{5}\\\\\frac{3}{8}+\frac{1}{6}=\frac{9}{24}+\frac{4}{24}=\frac{13}{24}\\\\\frac{1}{10}+\frac{1}{6}+\frac{7}{12}+\frac{4}{10}=\frac{5}{10}+\frac{1}{6}+\frac{7}{12}=\frac{1}{2}+\frac{1}{6}+\frac{7}{12}=\frac{6}{12}+\frac{2}{12}+\frac{7}{12}=\frac{15}{12}=1\frac{3}{12}=1\frac{1}{4}[/tex]
[tex]\frac{5}{10}+\frac{3}{17}+\frac{1}{2}=\frac{1}{2}+\frac{3}{17}+\frac{1}{2}=\frac{2}{2}+\frac{3}{17}=1+\frac{3}{17}=1\frac{3}{17}[/tex]
Odpowiedź:
1/10 + 3/10 = 4/10 = 2/5
3/8 + 1/6 = 9/24 + 4/24 = 13/24
1/10 + 1/6 + 7/12 + 4/10 = 6/60 + 10/60 + 35/60 + 24/60 = 75/60 = 1 i 15/60 = 1 i 3/12 = 1 i 1/4
5/10 + 3/17 + 1/2 = 85/170 + 30/170 + 85/170 = 200/170 = 1 i 30/170 = 1 i 15/85 = 1 i 3/17
