Hej!
Przykłady od a) do c)
[tex]a] \ 7\frac{1}{2}+5\frac{2}{3}=7\frac{3}{6}+5\frac{4}{6}=12\frac{7}{6}=13\frac{1}{6}\\\\b] \ 2\frac{4}{5}+\frac{8}{10}=2\frac{4}{5}+\frac{4}{5}=2\frac{8}{5}=3\frac{3}{5}\\\\c] \ 14\frac{1}{4}-2\frac{1}{2}=14\frac{1}{4}-2\frac{2}{4}=13\frac{5}{4}-2\frac{2}{4}=11\frac{3}{4}[/tex]
Przykłady od d) do f)
[tex]d] \ 3\frac{1}{3}-\frac{1}{27}=3\frac{9}{27}-\frac{1}{27}=3\frac{8}{27}\\\\e] \ 15\cdot1\frac{1}{5}=15\cdot\frac{6}{5}=3\cdot6=18\\\\f] \ 4\frac{3}{7}\cdot2=\frac{31}{7}\cdot2=\frac{62}{7}=8\frac{6}{7}[/tex]
Pozdrawiam! - Jula
a) 7 1/2+5 2/3=7 3/6+5 4/6=12 7/6=13 1/6
b) 2 4/5+8/10=2 8/10+8/10=2 16/10=3 6/10=3 3/5
c) 14 1/4-2 1/2=14 1/4-2 2/4=13 5/4-2 2/4=11 3/4
d) 3 1/3-1/27=3 9/27-1 2/7=3 8/27
e) 15·1 1/5=15·6/5=90/5=18
f) 4 3/7·2=31/7·2=62/7=8 6/7
