62.5%*6 又1/7-5/8+1又6/7*0.625简便运算
问题描述:
62.5%*6 又1/7-5/8+1又6/7*0.625简便运算
答
62.5%*43/7-5/8+13/7*0.625
=0.625/7*(43+13) - 5/8
=5/8*(56/7 - 1)
=5/8*7
=35/8