Question

na teraz.. ;]

a) 3/4 + 1/4 * 5=

b) 1 5/6 - 1/6 *1 1/2=

c) 4 3/5 - (1/2) do potęgi 3 * 8/9=

d) 2 1/2 * (4/5 - 1/2) do potęgi 2 =

e) 0,2 +3/5 =

f) 1,25 * 3/4 =

g) 3,5 * 1/7 =

h) (8 1/3 - 8 1/10)*(9-4 5/7) =

i) 1 2/5 : 12 3/7 - 3 1/3* (4 2/11 - 3 1/2) =

j) 2*3 4/5 - 4/7 : 1 5/21 kreska ułamkowa i w mianowniku (1 1/2 - 4) * 10/27 : 5/6 =

k) (2/9) do potęgi minus 2 l) (1/2) do potęgi 2 * (2/7) do potęgi minus 3

Answer 1

a) 3/4+5/4=8/4=2

b)11/6-1/6*3/2=11/6-3/12=22/12-3/12=19/12=1 7/12

c) 23/5 -1/8*8/9= 23/5 - 1/9= 207/45-5/45=202/45 =4  22/45

d) 5/2 *(8/10-5/10)do potegi 2 = 5/2*(3/10)do pot 2 =5/2*9/100=9/40

e) 2/10+6/10=8/10=4/5

f)5/4*3/4=15/16

g)7/2*1/7=1/2

h)(1/3-1/10)*4 2/7=(10/30-3/30)*4 2/7=7/30*30/7=1

i) 7/5*87/7-10/9(46/11-7/2)= 87/5-10/9*15/22=87/5-25/33=2871/165-75/165=2796/165=16 156/165

j)2*19/5-4/7*26/21kreska(3/2-4)*10/27*6/5= 38/15-4/78 kreska 10/9=38/15-4/78

Answer 2

a) 3/4 + 1/4 * 5=3/4+5/4=8/4=2

b) 1 5/6 - 1/6 *1 1/2=11/6-1/6*3/2=11/6-3/12=22/12-3/12=19/12=1 i 7/12

c) 4 3/5 - (1/2) do potęgi 3 * 8/9=23/5-1/8*8/9=23/5-1/9=207/45-5/45=202/45=

4 i 22/45

d) 2 1/2 * (4/5 - 1/2) do potęgi 2 =5/2*(8/10-5/10)^2=5/2*9/100=45/200=9/40

e) 0,2 +3/5 =2/10+6/10=8/10=4/5

f) 1,25 * 3/4 =1,25+0,75=2

g) 3,5 * 1/7 =35/10*1/7=5/10=1/2

h) (8 1/3 - 8 1/10)*(9-4 5/7) =(25/3-81/10)*(9-33/7)=(250/30-243/30)*(63/7-33/7)=

7/30*30/7=1

i) 1 2/5 : 12 3/7 - 3 1/3* (4 2/11 - 3 1/2) =7/5*7/87-10/3*(92/22-77/22)=

49/435-10/3*15/22=49/435-50/22=1078/9570-21750/9570=-20672/9570=

-2 i 1532/9570= -2 i 766/4785

j) 2*3 4/5 - 4/7 : 1 5/21 kreska ułamkowa i w mianowniku (1 1/2 - 4) * 10/27 : 5/6 =

licznik        2/1*19/5-4/7*21/26 =38/5-6/13         =494/65-30/65  =

mianownik (3/2-8/2)*10/27:5/6 =-5/2*10/27*6/5 =-30/27            =

 

=464/65*(-27/30)=-6264/975=-6 i 414/975

 

k) (2/9) do potęgi minus 2 l) (1/2) do potęgi 2 * (2/7) do potęgi minus 3

 

20 i 1/4*1/4*42 i 7/8=81/4*1/4*343/8=27783/128=217 i 7/128