Answer:
2 5/12
Step-by-step explanation:
You put it so that the denominators are the same so in this case I used 12 as the denominator and used the rule for each. Next I subtracted 3 9/12 minus 1 4/12 and got 2 5/12
It’s the last option (-6m-n+3)
Uh
Thsi is too much
Can you send an image of the problem