390
1)(3 1/4+2 1/2+5/8)×6=153/4
2)(6 5/12-2/3+1/12)×3/4=35/8
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390
1)(3 1/4+2 1/2+5/8)×6=153/4
2)(6 5/12-2/3+1/12)×3/4=35/8