Question

Ułamki zwykłe kreska ułamkowa to / 1.zadanie oblicz 9/20 x 10/21 = 4/15 x 5 5/6 = 1 4/5 x 5 5/6= 3 1/3 x 3 3/4 = 2 1/2 x 4 = 7 : 2/3 = 18 : 4/5 = 15/16 : 9/28 = 1/6 : 6 = 4/9 : 6 = 3 : 4 = 2 : 2 2/3 = 12 1/2 : 4 = 4/7 : 2 4/7 = 3 3/4: 1 7/8 =

Answer 1

9/20 x 10/21 = 3/14

4/15 x 5 5/6 = 4/15 * 35/6 = 14/9

1 4/5 x 5 5/6= 9/5 * 35/6 = 21/2 = 10 1/2

3 1/3 x 3 3/4 = 10/3 * 15/4 = 25/2 = 12 1/2

2 1/2 x 4 =  5/2 * 4 = 10

7 : 2/3 = 7 * 3/2 = 21/2 = 10 1/2

18 : 4/5 = 18 * 5/4 = 45/2 = 22 1/2

15/16 : 9/28 = 15/16 * 28/9 = 35/12 = 2 11/12

1/6 : 6 = 1/6 * 1/6 = 1/36

4/9 : 6 = 4/9 * 1/6 = 2/27

3 : 4 = 3 * 1/4 = 3/4

2 : 2 2/3 = 2 : 8/3 = 2 * 3/8 = 3/4

12 1/2 : 4 = 25/2 * 1/4 = 25/8 = 3 1/8

4/7 : 2 4/7 = 4/7 : 18/7 = 4/7 * 7/18 = 2/9

3 3/4: 1 7/8 = 15/4 : 15/8 = 15/4 * 8/15 = 2