Cześć potrzebuje pomocy w zadaniu 11,12
a) 4 3/18 x 9=
B) 12x 3 1/6 =
2 1/4 x 2 2/7 =
Z. 12
1 1/3 :1 4/5 =
4 3/8 : 2/3


Odpowiedź :

Odpowiedź:

[tex]4 \frac{3}{18} * 9 = \frac{75}{18} * \frac{9}{1} = \frac{75}{2} = 37 \frac{1}{2} \\12 * 3\frac{1}{6} = \frac{12}{1} * \frac{19}{6} = \frac{38}{1} = 38\\2\frac{1}{4} * 2\frac{2}{7} = \frac{9}{4} * \frac{16}{7} = \frac{36}{7} = 5\frac{1}{7} \\\\1\frac{1}{3} : 1\frac{4}{5} = \frac{4}{3} : \frac{9}{5} = \frac{4}{3} * \frac{5}{9} = \frac{20}{27} \\4\frac{3}{8} : \frac{2}{3} = \frac{35}{8} * \frac{3}{2} = \frac{105}{16} = 6 \frac{9}{16}[/tex]

Odpowiedź:

a)

4 3/18 x 9 = 72/18 * 9 = 72/2 = 36

B)

12 x 3 1/6 = 12 * 19/6 = 2 * 19 = 38

2 1/4 x 2 2/7 = 9/4 * 16/7 = 36/7 = 5 1/7

Z. 12

1 1/3 : 1 4/5 = 4/3 : 9/5 = 4/3 * 5/9 = 20/27

4 3/8 : 2/3 = 35/8 * 3/2 = 105/16 = 6 9/16

Szczegółowe wyjaśnienie: