Pls help for brainlist

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.

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2 1/2 feet

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