Question

W okienko wpisz odpowiednią lidzbę
a) +3 i 2/3 =10 b) 7 i 1/2 - =5 i 1/4
c) * 3/8 = 1 d) - 2 i 2/5 = 3 i 3/10
e) 5: = 10 f) : 3/10 = 20
PLISS SZYBKO

Answer 1

Odpowiedź:

.... + 3 i 2/3 = 10

10 - 3 i 2/3 = 9 i 3/3 - 3 i 2/3 = 6 i 1/3

spr  6 i 1/3 + 3 i 2/3 = 9 i 3/3 = 10

7 i 1/2 - .... = 5 i 1/4

7 i 1/2 - 5 i 1/4 = 7 i 2/4 - 5 i 1/4 = 2 i 1/4

spr   7 i 1/2 -  2 i 1/4 = 7 i 2/4 - 2 i 1/4 = 5 i 1/4

... * 3/8 = 1

1 : 3/8 = 1 * 8/3 = 8/3 = 2 i 2/3

2 i 2/3 * 3/8 = 8/3 * 3/8 =  1

.... - 2 i 2/5 = 3 i 3/10

3 i 3/10 + 2 i 2/5 = 3 i 3/10 + 2 i 4/10 = 5 i 7/10

spr  5 i 7/10 - 2 i 2/5 = 5 i 7/10 - 2 i 4/10 = 3 i 3/10

5 : ... = 10

5 : 10 = 0,5

spr   5 : 0,5 = 10

.... : 3/10 = 20

20 * 3/10 = 6

spr   6 : 3/10 = 6 * 10/3 = 20