3又1/10+3又11/100+3又111/1000+3又1111/10000+3又11111/100000
问题描述:
3又1/10+3又11/100+3又111/1000+3又1111/10000+3又11111/100000
答
3又1/10+3又11/100+3又111/1000+3又1111/10000+3又11111/100000
=3×5+0.1+0.11+0.111+0.1111+0.11111
=15+0.54321
=15.54321