5 1/3 + 9 2/7 -4 1/21 + 1

Question

5 1/3 + 9 2/7 -4 1/21 + 1

Answer 1

5 1/3 + 9 2/7 -4 1/21 + 1 = 16/3 + 65/7 - 85/21 + 1 = 112/21 + 195/21 - 85/21 + 1 = 222/21 + 1= 10 12/21 + 1 = 11 12/21

Comments

Прошу прощения, еще +1 , тогда ответ 19 10/21 :)

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Совсем невнимательная. Вот: 5 1/3 + 9 2/7 -4 1/21 + 1 = 16/3 + 65/7 - 85/21 + 1 = 112/21 + 195/21 - 85/21 + 1 = 222/21 + 1= 10 12/21 + 1 = 11 12/21