1.Rozwiąż równania i sprawdź.A.3 5/6+a=5 2/9B.b-1 3/4=2 5/6C.4 1/5-c=2 2/32.Oblicz(7 3/5-2 7/10)-(3 1/4+1 1/2)=
a. 3 5/6+a= 5 2/9
a= 5 2/9 - 3 5/6
a= 5 4/18 - 3 15/18
a= 4 22/18 -3 15/18
a= 1 7/18
b) b- 1 3/4=2 5/6
b= 2 5/6 + 1 3/4
b= 2 10/12 + 1 9/12
b= 3 19/12
b= 4 7/12
c) 4 1/5 -c =2 2/3
-c= 2 2/3 - 4 1/5
-c=2 10/15 - 4 3/15
-c= - 2 13/15 | : (-1)
c= 2 13/15
2. ( 7 3/5 - 2 7/10) - ( 3 1/4 + 1 1/2)= (7 6/10 - 2 7/10)-(3 1/4 + 1 2/4)=(6 16/2 7/10) - 4 3/4= 4 9/10 - 4 3/4= 4 18/20 - 4 15/20= 3/20
prosze o naj:D
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a. 3 5/6+a= 5 2/9
a= 5 2/9 - 3 5/6
a= 5 4/18 - 3 15/18
a= 4 22/18 -3 15/18
a= 1 7/18
b) b- 1 3/4=2 5/6
b= 2 5/6 + 1 3/4
b= 2 10/12 + 1 9/12
b= 3 19/12
b= 4 7/12
c) 4 1/5 -c =2 2/3
-c= 2 2/3 - 4 1/5
-c=2 10/15 - 4 3/15
-c= - 2 13/15 | : (-1)
c= 2 13/15
2. ( 7 3/5 - 2 7/10) - ( 3 1/4 + 1 1/2)= (7 6/10 - 2 7/10)-(3 1/4 + 1 2/4)=(6 16/2 7/10) - 4 3/4= 4 9/10 - 4 3/4= 4 18/20 - 4 15/20= 3/20
prosze o naj:D