Question

помогите пжпжпжжпжпж

Answer 1

Ответ:

1 5/7-4 3/13÷1 19/26=1 5/7-55/13×26/45=

1 5/7-22/9=1 5/7-2 4/9=1 45/63-2 28/63=

1 45/63-1 91/63=46/63