Question

( -12/7)+(5/6+6/7)=(-12/7+5/6)+( )

Answer 1

Answer:

Step-by-step explanation:

( -12/7)+(5/6+6/7)=-1/42

So that (-12/7+5/6)+( )shoud equal to -1/42

(-12/7+5/6)=-41/42

So ()=41

41 can get from 20/21

( -12/7)+(5/6+6/7)=(-12/7+5/6)+( 20/21)