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2supra3:4supra9,1supra8:3supra4,3supra5:2supra5,7supra2:1supra4,12supra5:3,77supra27:33supra12,9supra12:2 intregi si 9supra18


Răspuns :

2/3:4/9= 3/2 /= supra

1/8:3/4=1/6

3/5:2/5=3/2

7/2 : 1/4=4