29/13-(3/13+5/7) 25-25×99/100
问题描述:
29/13-(3/13+5/7) 25-25×99/100
简便运算
快,
答
29/13-(3/13+5/7)
=29/13-3/13-5/7
=2-5/7
=9/7
25-25×99/100
=25×(1-99/100)
=25×1/100
=1/4