Asked by Help me plzzz

-1/4+(-2/7)=?
a.-15/28
b.-3/11
c.9/14
d.3/28
Answered by Ms. Sue
I did the last problem for you. Now it's your turn.

I'll be glad to check your answer.

Answered by Help me plzzz
what i got was a but i dont get it
Answered by Ms. Sue
How did you do the problem? Please post it and I'll see if I can help you.