简便算法:1/8x73/100x25x32、5/11x34x1/10x2/51、8/9x[3/4-(7/16=1/4)]
问题描述:
简便算法:1/8x73/100x25x32、5/11x34x1/10x2/51、8/9x[3/4-(7/16=1/4)]
答
简便算法:1/8x73/100x25x32、5/11x34x1/10x2/51、8/9x[3/4-(7/16=1/4)]