3/4+8/14-1/4-1/14怎样简便运算

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3/4+8/14-1/4-1/14怎样简便运算3/4+8/14-1/4-1/14怎样简便运算3/4+8/14-1/4-1/14怎样简便运算3/4+8/14-1/4-1/14=(3/4-1/4)+(8/

3/4+8/14-1/4-1/14怎样简便运算
3/4+8/14-1/4-1/14怎样简便运算

3/4+8/14-1/4-1/14怎样简便运算
3/4+8/14-1/4-1/14
=(3/4-1/4)+(8/14-1/14)
=1/2+1/2
=1

3/4+8/14-1/4-1/14
=(3/4-1/4)+(8/14-1/14)
=2/4+7/14
=1/2+1/2
=1