Question

шестое задания)
решите плиз))

Answer 1

будет $frac{31}{35}$ 

Answer 2

ответ

Answer 3

а решение?)

Answer 4

 6 3/7 - 4,135 + 1,235 - 2 9/14 =  57/70

- 4,135 + 1,235 = - 2,9

6 3/7 - 2 9/14 = 6 6/14 - 2 9/14 = 5 20/14 - 2 9/14 = 3 11/14

3 11/14 - 2,9 = 3 11/14 - 2 9/10 =  3 55 /70 - 2 63/70 = 2 120/70 - 2 63/70 = 57/70