Предмет: Математика, автор: Helenkl

как найти число, если 19/21 его равны 87,92

Ответы

Автор ответа: Senpoliya

2

$87,93 : \frac{19}{21}=87 \frac{92}{100}* \frac{21}{19}=87 \frac{23}{25}* \frac{21}{19}= \frac{2198*21}{25*19}= \frac{46158}{475}=97 \frac{83}{475}$

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