Question

obliczenie wartości wyrażen algebraicznych

a=1/5 b=2 c=1 d=1/3

(b-1/10):2

(c-2/6):6

(d-2/6):14

plis szybko to zróbcie pliiisssssssssssssssss

Answer 1

( 2- 1/10):2= 1-1/10* 1/2= 1 - 1/20 = 19/20

(1-1/3);6= 1/6 - 1/18= 3/18 - 1/18 = 2/18= 1/9

(1/3 - 1/3):14= 1/42 - 1/42 = 0

 

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Answer 2

( b - 1/10 ) : 2 = ( 2 - 1/10 ) : 2 = ( 20/10 - 1/10 ) : 2 = 19/10 : 2/1 = 19/10 x 1/2 = 19/20

 

( c - 2/6 ) : 6 = ( 1 - 2/6 ) : 6 = ( 6/6 - 2/6 ) x 1/6 = 4/6 x 1/6 = 4/36 = 1/9

 

(d - 2/6 ) : 14 = ( 1/3 - 2/6 ) : 14 = ( 2/6 - 2/6 ) : 14 = 0 : 14 = 0