Question

A) 3 cale i 2/11 × ( 6 calych i 5/21-1 cala 11/21)= b) (1 cala i 3/5 + 2,2) : 6 calych i 1/3 = c) (3 cale i 4/7 + 11/14) × 3,2 = d) 1 cala i 1/4 : 0,25 - 3 cale i 2/3 = e) 1-0,125 - 5/6 : (0,25) = Jak co x to jest razy XDD prosze o rozpisanie ;** nie tylko wynik

Answer 1

a) 3 cale i 2/11 × ( 6 calych i 5/21-1 cala 11/21)=

= (35/11)*[131/21 - 32/21 ] =

= (35/11)*(99/21) =

=  15

 

b) (1 cala i 3/5 + 2,2) : 6 calych i 1/3 =

= (8/5  + 22/10) : (19/3) =

= (8/5 + 11/5) *(3/19) =

= (19/5)*(3/19) =

= 3/5 =

= 0,4

 

c) (3 cale i 4/7 + 11/14) × 3,2 =

= (25/7 + 11/14) *(32/10 ) =

= (50/14 +11/14) *(16/5) =

= (61/14)*(16/5) =

=  488/35 =

= 13 i 33/35

 

d) 1 cala i 1/4 : 0,25 - 3 cale i 2/3 =

= 5/4 : 1/4 - 11/3 =

= (5/4)*(4/1) - 11/3 =

=  5 - 11/3 =

= 15/3 - 11/3 =

= 4/3=

= 1 i 1/3

 

e) 1-0,125 - 5/6 : (0,25) =

= 1 - 1/8 - 5/6 : (1/4) =

= 8/8 -1/8 -5/6*(4/1) =

= 7/8 - 10/3 =

= 21/24 - 80/24 =

= 59/24 =

= 2 i 11/24

Answer 2

a) 3 2/11 × (6 5/21 - 1 11/21) = 3 2/11 × ( 5 26/21 - 1 11/21) = 3 2/11 × 4 15/21 = 35/11 × 99/21 = 45/3 = 15

b) (1 3/5 + 2,2) : 6 1/3= (1,6 + 2,2) : 6 1/3 = 3,8 : 6 1/3 = 3 4/5 : 6 1/3 = 19/5 : 19/3 = 19/5 × 3/19 = 3/5 = 0,6

c) (3 4/7 + 11/14) × 3,2 = (3 8/14 + 11/14) × 3 1/5= 3 19/14 × 3 1/5 = 61/14 × 16/5 = 488/35 = 13,9

d) 1 1/4 : 0,25 - 3 2/3 = 5/4 : 1/4 - 3 2/3 = 5/4 × 4/1 - 3 2/3 = 5 - 3 2/3 = 2 1/3

e) 1 - 0,125 - 5/6 : 0,25 = 1 - 0,125 - 5/6 : 1/4 = 1 - 0,125 - 5/6 × 4/1 = 1 - 0,125 - 10/3 = 1 - 1/8 - 3 1/3 = 7/8 - 3 1/3 = 21/24 - 3 8/24 = 21/24 - 80/24 = - 59/24  = -2 11/24