1/2+1/6+1/18+1/54+1/162+1/486等与多少
问题描述:
1/2+1/6+1/18+1/54+1/162+1/486等与多少
答
通分 (243+81+27+9+3+1)/486=364/486=182/243
1/2+1/6+1/18+1/54+1/162+1/486等与多少
通分 (243+81+27+9+3+1)/486=364/486=182/243