Пошаговое объяснение:
2 3/5 : 7 4/5 = 5х : 4 1/2
5х * 7 4/5 = 4 1/2 * 2 3/5
5х * 39/5 = 9/2 * 13/5
195/39х = 117/10
5х = 117/10
х = 117/10 : 5
х = 117/10 * 1/5
х = 117/50
х = 2 17/50
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Пошаговое объяснение:
2 3/5 : 7 4/5 = 5х : 4 1/2
5х * 7 4/5 = 4 1/2 * 2 3/5
5х * 39/5 = 9/2 * 13/5
195/39х = 117/10
5х = 117/10
х = 117/10 : 5
х = 117/10 * 1/5
х = 117/50
х = 2 17/50