Question

小学数学简便运算 6题，20分！！！

八分之七*36+44*八分之七
（二分之一-八分之三）/四分之三
55.3-1.38-13.62
60*（四分之三+六分之一-五分之二）
八分之五/（1-三分之一-六分之一）
六分之一/[三分之二*（五分之四-十五分之八）]
求高手！！！

Answer 1

7/8*36+44*7/8
=7/8(36+44)
=7/8*80
=70

(1/2-3/8)*4/3
=2/3-1/2
=1/6

55.3-(1.38+13.62)
=55.3-15
=40.3

60*3/4+60*1/6-60*2/5
=45+10-24
=55-24
=31

5/8/(1-2/6-1/6)
=5/8/(1/2)
=5/4

1/6/(2/3*4/5-2/3*8/15)
=1/6/(8/15-2/3*8/15)
=1/6/(8/45)
=45/48
=15/16

Answer 2

八分之七*36+44*八分之七
=7/8*(36+44)
=7/8*80
=70

（二分之一-八分之三）/四分之三
=1/2*4/3-3/8*4/3
=2/3-1/2
=4/6-3/6
=1/6

55.3-1.38-13.62
=55.3-（1.38+13.62）
=55.3-15
=40.3

60*（四分之三+六分之一-五分之二）
=60*3/4+60*1/6-60*2/5
=45+10-24
=31

八分之五/（1-三分之一-六分之一）
=5/8÷(1-1/2)
=5/8*2
=5/4

六分之一/[三分之二*（五分之四-十五分之八）]
=1/6÷（2/3*1/15）
=1/6*3/2*15
=1/4*15
=15/4

Answer 3

八分之七*36+44*八分之七
=7/8*(36+44)
=7/8*80
=70
（二分之一-八分之三）/四分之三
=1/2*4/3-3/8*4/3
=2/3-1/2
=4/6-3/6
=1/6
55.3-1.38-13.62
=55.3-(1.38+13.62)
=55.3-15
=40.3
60*（四分之三+六分之一-五分之二）
=60*3/4+60*1/6-60*2/5
=45+10-24
=55-24
=31
八分之五/（1-三分之一-六分之一）
=5/8/(1-1/2)
=5/8*2
=5/4
六分之一/[三分之二*（五分之四-十五分之八）]
=1/6/[2/3*4/15]
=1/6*3/2*15/4
=45/(6*8)
=15/16

Answer 4

7/8*36+44*7/8=7/8*(36+44)=(7/8)*80=70
(1/2-3/8)/(3/4)=(1/8)*(3/4)=3/32
55.3-1.38-13.62=55.3-(1.38+13.62)=55.3-15=40.3
60*(3/4+1/6-2/5)=60*(3/4)+60*(1/6)-60*(2/5)=45+10-24=31
(5/8)/(1-1/3-1/6)=(5/8)*(1-1/2)=5/16
(1/6)/[(2/3)*(4/5-8/15)]=(1/6)/[(2/3)*(4/15)]=(1/6)/[8/45]=(1/6)*(45/8)=15/16

Answer 5

八分之七*36+44*八分之七=(36+44)(7/8)=80(7/8)=70;
(1/2-3/8)/(3/4)=(1/8)/(3/4)=1/6;
55.3-1.38-13.62=55.3-15=40.3;
60(3/4+1/6-2/5)=45+10-24=31;
(5/8)/(1-1/3-1/6)=(5/8)/(1/2)=5/4;
(1/6)/((2/3)(4/5-8/15))=(1/6)/(8/45)=45/48=15/16;

Answer 6

1、=7/8(36+44)=175/2
2 =(4/8-3/8)/3/4=1/8X4/3=1/6
3 =55.3-(1.38+13.62)=55.3-15=40.3
4 =60X3/4+60X1/6-60X2/5=45+10-24=31
5 =5/8/(6/6-2/6-1/6)=5/8/1/2=5/4
6 =1/6/[2/3X(12/15-8/15)=1/6/[2/3X7/15)=1/6X45/14=15/28