Question

Oblicz:

(3,93-1i 3/4)*(5 i 2/5+3,4)=

[(2 i 1/2+3 i 3/4)*2 i 1/5-4 i 1/3] : 7/12=

2 i 1/3+2/5=

12 i 2/7-6 i 1/2=

4 i 4/5*7/12=

5 i 2/3 : 2 i 1/6=

3 i 1/3 : 2 i 1/2=

_______________ = to jest z tą kreską razem

1 i 3/5-2/3

3/4 :6=

7,8-5 i 5/6=

3 i 1/9 : 1,4=

2,7 liczby 16=

Pliska pomocy potrzebuję tego na jutro,

Dam naj... :-)

Answer 1

a)

(3,93-1,75)*(5,4+3,4) = 2,18*8,8 = 19,184

b)

[(2,5+3,75)*2,2-4 i 1/3] : 7/12 = (55/4 - 13/3)*12/7 = (165/12 - 52/12)*12/7 = 113/12*12/7 = 113/7

c)

2 i 1/3 + 2/5 = 7/3 + 2/5 = 35/15 + 6/15 = 41/15

d)

12 i 2/7 - 6 i 1/2 = 86/7 - 13/2 = 172/14 - 91/14 = 84/14 = 42/7 = 6

e)

4 i 4/5*7/12 = 24/5*7/12 = 14/5

f)

5 i 2/3 : 2 i 1/6 = 17/3 : 13/6 = 17/3*6/13 = 34/13

g)

(3 i 1/3 : 2 i 1/2) : (1 i 3/5 - 2/3) = (10/3 * 2/5) : (8/5 - 2/3) = 4/3 : 14/15 = 4/3 * 15/14 = 20/15 * 15/14 = 20/14

h)

3/4 : 6 = 3/4 * 1/6 = 1/8

i)

7 i 8/10 - 5 i 5/6 = 78/10 - 35/6 = 468/60 - 350/60 = 118/60

j)

3 i 1/9 : 1 i 4/10 = 28/9 * 14/10 = 20/9

k)

16*2,7 = 43,2

 

Liczę na Naj!!! :)

 

Pozdrawiam SheaThor