Помогите пятое шестое

Question

Помогите пятое шестое

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Answer 1

(5 1/2+2 3/6)*5/9=
(7 3/6+3/6)*5/9=8/1*5/9=40/9=4 4/9

(7-2 5/16)*4/25=
(4 16/16-5/16)*4/25=
4 11/16*4/25=75/16*4/25=3/4