Question

-5/7.2/11 +5/7.9/11+1

Answer 1

-5/7 .2/11+5/7 .9/11 +1

=-5/7.(2/11+9/11)+1=-5/7 .1+1=-5/7+1=-5/7+7/7=2/7

Answer 2

-5/7 . 2/11 + 5/7 . 9/11 + 1

= -1 . 5/7 . 2/11 + 5/7 . 9/11 + 1

= 5/7 . (-1 + 2/11 + 9/11) + 1

= 5/7 . (-1 + 2 + 9/11) + 1

= 5/7 . (-1 + 11/11) + 1

= 5/7 . (-1 + 1) + 1

= 5/7 . 0 + 1

= 0 + 1

= 1

Answer 3

2/7:)nhé