Ответ:
1)75/500=15/100=0,15
2)90/1800=1/20=1×5/20×5=5/100=0,05
3)96/2400=16/400=4/100=0,04
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Ответ:
1)75/500=15/100=0,15
2)90/1800=1/20=1×5/20×5=5/100=0,05
3)96/2400=16/400=4/100=0,04