Answer:
6 4/12
Explanation:
1 3/ 12+ 1/12 + 6 2/12 = 7 6/12 or 7 1/2
7/4 +1/6 +X=15/2
1/6+X=15/2-7/4
1/6+X=30/4-7/4
X=23/4 - 1/6
X= 138-4/24
134/24
5.58333
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