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1
= • 12
3


7
= • 14
56


3
= • 1
5



2 3
= • =
5 7



17 20
== • ==
10 3


Răspuns :

Răspuns:

1/3•12= 12/3=4

7/56•14= 1/8•14= 14/8= 7/4=1,75

3/5•1= 3/5= 0,6

2/5•3/7= 6/35

17/10•20/3= 17•2/3= 34/3= 11,(3) sau

17/10•20/3= 340/30= 68/6= 11,(3)