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a) 8/9=16/8
8=16×9/18
8=8 adevarat
b) 7,5/6=5/4
7,5=5×6/4
7,5=7,5 adevarat
c)2,4/0,96=4/1,6
2,4=4×0,96/1,6
2,4=2,4 adevarat
d) 10/0,4=2/0,08
10=2×0,8/0,08
10=10 adevarat