urgent dau coroana va rog

Răspuns:
Explicație pas cu pas:
25/6 : 5/4 = 25/6 * 4/5 = 10/3
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8/9 : 16/3 = 8/9 * 3/16 = 1/6
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13/6 : 13/3 = 13/6 * 3/13 = 3/6 = 1/2
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36/7 : 45/14 = 36/7 * 14/45 = 8/5