Question

Oblicz:

10*(47,2 : 12 - 20 : 6 i 3/7) - 1 i 35/36

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6 - 1 i 13/15 * ( 31/42 + 47/56 + 25/48 )

9 i 1/6 - 1 i 9/14 - 1/30 * 3 i 1/3 + 1/63

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19/96 + ( 8 i 4/15 - 6 i 7/24 ) : 0,8 - 1,5 : 2,25

- 2,4 - 3,6 * ( 1 i 3/8 : 3,3 - 5/9 )=

(0,3 + 4/5) : ( 6 i 1/15 - 2/3 ) =

(3,75 + 1 i 3/8 ) : 2 =

Answer 1

10*(47,2 : 12 - 20 : 6 i 3/7) - 1 i 35/36         10*(236/5-20*7/45)-71/36

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6 - 1 i 13/15 * ( 31/42 + 47/56 + 25/48 )       6-28/15*(248+282+175)/336

 

10*(2124-140)/45-71/36     3968/9-71/36       15872/36

----------------------------- = ------------------- = ------------- = 15872/36*12/25 = 

6-28/15*705/336                6-47/12                   25/12

 

=211 i 47/75

 

 

9 i 1/6 - 1 i 9/14 - 1/30 * 3 i 1/3 + 1/63              385/42-69/42-1/30*10/3-1/63

________________________________________= ---------------------------------------- = 

19/96 + ( 8 i 4/15 - 6 i 7/24 ) : 0,8 - 1,5 : 2,25    19/96+(992/120-755/120)*5/4-2/3

 

158/21-1/9-1/63           474/63-8/63     

--------------------------- = --------------- = 466/63*96/192 = 3i44/63

19/96+237/96-64/96       192/96

 

- 2,4 - 3,6 * ( 1 i 3/8 : 3,3 - 5/9 )= -2,4-3,6(11/8*10/33-5/9) = -2,4-3,6(5/12-5/9)=

=-2,4-18/5*(-15/108)=-2,4+0,5=-1,9

(0,3 + 4/5) : ( 6 i 1/15 - 2/3 ) =(3/10+8/10):(91/15-10/15)=11/10*15/81=33/162

(3,75 + 1 i 3/8 ) : 2 =(34/8+11/8):2=45/8*1/2=45/16=2i13/16