98.9k views
3 votes
3/7-3/4 now plzs helppp

2 Answers

3 votes
-9/28 ... 12-21 /28 = -9/28
User Dzienny
by
8.8k points
5 votes

Answer:

-9/28

Explanation:

it's so easy . take the L.C.M which is 28

User GrGr
by
8.4k points