16/13-(3/13-1/2)怎样简便运算方式

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16/13-(3/13-1/2)怎样简便运算方式16/13-(3/13-1/2)怎样简便运算方式16/13-(3/13-1/2)怎样简便运算方式16/13-(3/13-1/2)=16/13-3/13+

16/13-(3/13-1/2)怎样简便运算方式
16/13-(3/13-1/2)怎样简便运算方式

16/13-(3/13-1/2)怎样简便运算方式
16/13-(3/13-1/2)=16/13-3/13+1/2=1+1/2=3/2

(16/13-3/13)+1/2
这样简单不?

YUN,,玩我们
16/13-3/13+1/2=1+1/2

16/13-(3/13-1/2)=16/13-3/13+1/2=1+1/2=3/2

16/13-(3/13-1/2) →变为 (16/13-3/13)-1/2=1-1/2=1/2
ok !