Odpowiedź:
[tex]a) 1\frac{3}{4} * \frac{5}{6} =\boxed{1\frac{11}{24} }\\b)2\frac{3}{4} - \frac{7}{12}= \boxed{2\frac{1}{6} }\\\\c) 1\frac{5}{7}* 2\frac{1}{4}=\boxed{3\frac{6}{7} } \\\\d)5\frac{1}{2} : 1\frac{3}{8} = \boxed{4}[/tex]
Szczegółowe wyjaśnienie:
1 i 3/4 * 5/6 = 7/4 * 5/6 = 35/24 = 1 i 11/24
2 i 3/4 - 7/12 = 2 i 9/12 - 7/12 = 2 i 2/12 = 2 i 1/6
1 i 5/7 * 2 i 1/4 = 12/7 * 9/4 = 27/7 = 3 i 6/7
5 i 1/2 : 1 i 3/8 = 11/2 : 11/8 = 11/2 * 8/11 = 4
