Question

-0.5-(-3又4分子1)+2.75-+7又2分之1

Answer 1

-0.5-(-3又4分子1)+2.75-+7又2分之1

= -1/2 + 13/4 + 2 + 3/4 + 15/2

= -1/2 + 15/2 + 2 + 3/4+ 13/4

= 7 +2 + 16/4

= 9 +4

= 13

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