0.625×0.5+5/8+1/2×62.5%(全部简算)
问题描述:
0.625×0.5+5/8+1/2×62.5%(全部简算)
2002×2000/2001(6/7+16/13+20/9)÷(3.7+8/13+10/9)
大家我好急呢!我会给悬赏的
答
2002×2000/2001
=(2001+1)*(2001-1)/2001
=(2001*2001-1*1)/2001
=2001-1/2001