早教吧作业答案频道 -->数学-->
5/8÷(1/2+1/4)8/13÷7+1/7×6/131/2-1/8÷5/12
题目详情
5/8÷(1/2+1/4) 8/13÷7+1/7×6/13 1/2-1/8÷5/12
▼优质解答
答案和解析
5/8÷(1/2+1/4)
=5/8÷(2/4+1/4)
=5/8÷3/4
=5/8×4/3
=5/6
8/13÷7+1/7×6/13
= 8/13×1/7+1/7×6/13
= (8/13+6/13)×1/7
=14/13×1/7
=2/13
1/2-1/8÷5/12
=1/2-1/8×12/5
=1/2-3/10
=5/10-3/10
=2/10
=1/5
=5/8÷(2/4+1/4)
=5/8÷3/4
=5/8×4/3
=5/6
8/13÷7+1/7×6/13
= 8/13×1/7+1/7×6/13
= (8/13+6/13)×1/7
=14/13×1/7
=2/13
1/2-1/8÷5/12
=1/2-1/8×12/5
=1/2-3/10
=5/10-3/10
=2/10
=1/5
看了 5/8÷(1/2+1/4)8...的网友还看了以下:
非空集合A满足A包含于{1,2,3,4,5},若a属于A,则6-a属于A,满足上述条件集合的个数( 2020-05-16 …
根据23×17=391,直接写出得数.23×1700=2.3×1.7=230×1700=3910÷ 2020-05-17 …
√30*2√3/1*√7/10等于多少 2020-06-05 …
1,下列各数,正数一共有()个-11,0,0.2,3,+1/7,2/3,1,-12,在0、1/2、 2020-06-23 …
求几道数列题的解法1.3,7/4,1,1/2,()2.2/3,1/7,3/13,6/21,()3. 2020-07-14 …
一位同学发现:2+1=3,2×3+1=7,2×3×5+1=31且3、7、31都是质数,于是他得到结 2020-07-17 …
数学难题一位同学发现:2+1=3,2*3+1=7,2*3*5+1=31,2*3*5*7+1=211 2020-07-18 …
序列{2,3,1,7,5,11,6,9}如何构造二叉排序树,并写出后序遍历2为根节点 2020-12-05 …
一位同学发现:2+1=3,2×3+1=7,2×3×5+1=31且3、7、31都是质数,于是他得到结论 2021-02-05 …
有理数2.5,-8,-0.7,2/3,-1/7,0.05和0中.那些是正数?哪些是负数? 2021-02-21 …