Ответ: х:7/15= 15/28
х×7/15= 15/28
15/7х= 15/28
х= 1/4.
x=(2/9)
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Ответ: х:7/15= 15/28
х×7/15= 15/28
15/7х= 15/28
х= 1/4.
x=(2/9)