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2 Oblicz.
a)
3.1
4 5
b) 23-1 =
1- 2=
6.1
8 4
=
ထပ
5
8
135
ဒီ
=
15. 22/2 =
4
12
2.3 =


2 Oblicz A 31 4 5 B 231 1 2 61 8 4 ထပ 5 8 135 ဒ 15 222 4 12 23 class=

Odpowiedź :

Odpowiedź:

Zad 2

a) 3/20

3/16

1 1/6

1 1/6

b)3 5/7

4 2/3

4 5/7

8 1/8

Szczegółowe wyjaśnienie:

2.

a) 3/4 x 1/5 = 3/20

   6/8 x 1/4 = 6/32 = 3/16

   5/8 x 1 1/3 = 5/8 x 4/3 = 20/21

   4/12 x 7/2 = 21/24 = 7/8

b) 2 3/5 x 1 3/7 = 13/5 x 10/7 = 130/35 = 3 25/35 = 3 5/7

   1 3/4 x 2 2/3 = 7/4 x 8/3 = 56/12 = 4 8/12 = 4 2/3

   1 5/6 x 2 4/7 = 11/6 x 18/7 = 198/42 = 4 30/42 = 4 5/7

   2 1/2 x 3 2/8 = 5/2 x 26/8 = 130/16 = 8 2/16 = 8 1/8