Question

Na poniedziałek poniedziałek​

Answer 1

Odpowiedź:

Szczegółowe wyjaśnienie:

a)

9/24+20/24=29/24=1 5/24

b)

3/8x5/6=15/48=5/16

c)

3/8x6/5=18/40=9/20

d)

5/6x8/3=40/18=2 4/18= 2 2/9

2.

a)

2 3/4 - 1 1/2 x 2/3 =2 3/4 - (3/2 x 2/3)= 2 3/4 - 1 = 1 3/4

b)

16/5 x 10/4= 160/20=8

Answer 2

Odpowiedź:

3/8 + 5/6 = 9/24 + 20/24 = 29/24 = 1 i 5/24

3/8 * 5/6 = 5/16

3/8 : 5/6 = 3/8 * 6/5 = 9/20

5/6 : 3/8 = 5/6 * 8/3 = 20/9 = 2 i 2/9

2 i 3/4 - 1 i 1/2 * 2/3 = 2 i 3/4 - 3/2 * 2/3 = 2 i 3/4 - 1 = 1 i 3/4

3 i 1/5 * (5 i 1/4 - 2 i 3/4) = 3 i 1/5 * (4 i 5/4 - 2 i 3/4) = 3 i 1/5 * 2 i 2/4 = 16/5 * 10/4 = 8