4/7-3/8+3/7-1/8简便运算
4/7-3/8+3/7-1/8简便运算
4/7-3/8+3/7-1/8简便运算
解:采用结合律,
原式=(4/7+3/7)-(3/8+1/8)
=1-4/8
=1/2
4/7-3/8+3/7-1/8怎么算
4/7-3/8+3/7-1/8
=4/7+3/7-(3/8+1/8)
=1-1/2
=1/2
7/8+1/7-3/8简便运算
7/8+1/7-3/8简便运算
=7/8-3/8+1/7
=1/2+1/7
=7/14+4/14
=11/14
[1-0÷(4/9-7/17)]×4/5简便运算和(3/8-1/4)÷(8/9+3/4)简便运算,要过程
[1-0÷(4/9-7/17)]×4/5
=[1-0]×4/5
=1×4/5
=4/5
(3/8-1/4)÷(8/9+3/4)
=1/8÷59/36
=9/118
用简便方法计算;3/8+3/7-3/8+3/7
尴尬,这个还要计算么?
3/8+3/8+7/5-3/8怎么简便运算
(3/5+7/5)+(3/8-3/8)=2
(7/8+3/5)(7/83/5)简便运算
(7/8+3/5)(7/8-3/5)简便运算
(7/8+3/5)(7/8-3/5)
=7/8*7/8-3/5*3/5
=49/64-9/25
=(49*25-9*64)/(64*25)
=649/1600
1/3+2/7-1/4简便运算
1/3+2/7-1/4
=28/84+24/84-21/84
=(28+24-21)/84
=31/84
1/4÷5/8+3/4÷5/8 简便运算
1/4÷5/8+3/4÷5/8
=1/4x8/5+3/4x8/5
=8/5x(1/4+3/4)
=8/5
3/4+3/7-3/4简便运算
3/4+3/7-3/4
=3/4-3/4+3/7
=0+3/7
=3/7
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2024-11-19 广告