8/9+10/11-(3/11+2/9)= 简便运算:9/26+5/14-3/13+3/28= 5/3+6/5-(2/3+1/5)= 方程解:15/16X+1/2=15/16+2/快!

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8/9+10/11-(3/11+2/9)= 简便运算:9/26+5/14-3/13+3/28= 5/3+6/5-(2/3+1/5)= 方程解:15/16X+1/2=15/16+2/快!
8/9+10/11-(3/11+2/9)= 简便运算:9/26+5/14-3/13+3/28= 5/3+6/5-(2/3+1/5)= 方程解:15/16X+1/2=15/16+2/
快!

8/9+10/11-(3/11+2/9)= 简便运算:9/26+5/14-3/13+3/28= 5/3+6/5-(2/3+1/5)= 方程解:15/16X+1/2=15/16+2/快!
8/9+10/11-(3/11+2/9)
= 8/9-2/9+10/11-3/11
=2/3+7/11
=43/33
9/26+5/14-3/13+3/28
=9/26-3/13+5/14+3/28
=3/26+13/28
=211/364
5/3+6/5-(2/3+1/5)
=5/3-2/3+6/5-1/5
=1+1=2