5减小括号6/7除以3/14加3/16小括号简便计算
5减小括号6/7除以3/14加3/16小括号简便计算
解:
原式
=5-(6/7×14/3+3/16)
=5-(4+3/16)
=5-4-3/16
=1-3/16
=13/16
简便方法六-小括号起3/4减2/5小括号收=
简便方法六-小括号起3/4减2/5小括号收=
6-(3/4-2/5)
=6-(15/20-8/20)
=6-7/20
=113/20
2/3乘以中括号3/10除以小括号1/3+2/5小括号中括号脱式计算?
2/3乘以中括号3/10除以小括号1/3+2/5小括号中括号=2/3*【3/10/(1/3+2/5)】=2/3*【3/10/(11/15)=2/3*9/22=3/11。
910减小括号14加720小括号除以34用简便演算法计算
910-(14+720)÷34
=910-700÷34-34÷34
=910-20-20/34-1
=890-1-10/17
=889-10/17
=888又17分之7
11/32除以大括号3/4-括号5/16-1/4小括号
(11/32)÷[3/4-(5/16-1/4)]
=(11/32)÷(3/4+1/4-5/16)
=(11/32)÷(11/16)
=16/32
=1/2
小括号2/3+2分之1-5/6括号乘36用简便计算
(2/3+1/2-5/6)x36
=2/3x36+1/2x36-5/6x36
=24+18-30
=42-30
=12
括号4/5 3/10括号完再除以3/10用简便方法计算
(4/5+3/10)÷3/10
=(4/5+3/10)×10/3
=4/5×10/3+3/10×10/3
=8/3+1
=3又2/3
638减小括号483减162小括号减217用脱式简便计算。
638-(483-162)-217
=638-483+162-217
=(638+162)-(483+217)
=800-700
=100
5/16乘以中,括号小括号2/5+2/3小括号除以5/6的计算过程是什么?
5/16乘以中,括号小括号2/5+2/3小括号除以5/6的计算过程是什么?
解:
5/16×[(2/5+2/3)÷5/6]
=5/16×16/15×6/5
=2/5
36除以小括号5/6-1/3小括号乘以8/9怎么简算
36÷(5/6-1/3)x(8/9)
=36x(8/9)÷(1/2)
=4x8x2
=64