Answer:9 /12 -4/12 = 5/12
Step-by-step explanation: First you need to find the same demointaor which can be 12 .You take 3/4 and times on boths side by 3 which gives you 9/12 .You take 1/3 and times on both sides by 4 which gives you 4/12. Now put 9 /12 and then put 4/12 and then subtract both which gives you 5/12.
Look at pic below.
