将下面的括号填上合适的分母,使等式成立:2/99=1/()-1/()2/143=1/()+1/()5/24=1/()+1/()+1/()+1/()2/35=1/()-1/()2/63=1/()-1/()1=1/()+1/()+1/()+1/()+1/()2/7=1/()+1/
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将下面的括号填上合适的分母,使等式成立:2/99=1/()-1/()2/143=1/()+1/()5/24=1/()+1/()+1/()+1/()2/35=1/()-1/()2/63=1/()-1/()1=1/()+1/()+1/()+1/()+1/()2/7=1/()+1/
将下面的括号填上合适的分母,使等式成立:
2/99=1/()-1/()
2/143=1/()+1/()
5/24=1/()+1/()+1/()+1/()
2/35=1/()-1/()
2/63=1/()-1/()
1=1/()+1/()+1/()+1/()+1/()
2/7=1/()+1/()+1/()
1/15=1/()+1/()+1/()
1/16=1/()+1/()+1/()+1/()
将下面的括号填上合适的分母,使等式成立:2/99=1/()-1/()2/143=1/()+1/()5/24=1/()+1/()+1/()+1/()2/35=1/()-1/()2/63=1/()-1/()1=1/()+1/()+1/()+1/()+1/()2/7=1/()+1/
2/99=1/33-1/99
2/143=1/143+1/143
5/24=1/24+1/24+1/24+1/12
2/35=1/5-1/7
2/63=1/7-1/9
1=1/5+1/5+1/5+1/5+1/5
2/7=1/14+1/14+1/7
1/15=1/45+1/45+1/45
1/16=1/64+1/64+1/64+1/64
2/99=1/33-1/99
2/143=1/143+1/143
5/24=1/24+1/24+1/24+1/12
2/35=1/5-1/7
2/63=1/7-1/9
1=1/5+1/5+1/5+1/5+1/5
2/7=1/14+1/14+1/7
1/15=1/45+1/45+1/45
1/16=1/64+1/64+1/64+1/64