Obliczenia
[tex]1\frac{1}{4}-0,5-\frac{3}{7}-0,25+1\frac{1}{2}=\\\\=1\frac{25}{100}-0,5-\frac{3}{7}-0,25+1\frac{5}{10}=\\\\=1,25-0,5-\frac{3}{7}-0,25+1,5=\\\\=1,25-0,25-0,5+1,5-\frac{3}{7}=\\\\=1+1-\frac{3}{7}=2-\frac{3}{7}=1\frac{7}{7}-\frac{3}{7}=1\frac{4}{7}[/tex]
