rút gọn \(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
rút gọn biểu thức A=3.5.7.11.13.37-10101/1212120+40404
A= [5.11.10101 -10101]/[10101.120+10101.4] = 10101.[5.11-1] / 101.[120+4] = 54/124=27/62
đúng nhé
Rút gọn biểu thức:
A=\(\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
\(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
\(A=\frac{\left(3.7.13.17\right).\left(5.11\right)-10101}{120.10101+4.10101}\)
\(A=\frac{10101.55-10101.1}{120.10101+4.10101}\)
\(A=\frac{10101.\left(55-1\right)}{10101.\left(120+4\right)}\)
\(A=\frac{10101.54}{10101.124}\)
\(A=\frac{54}{124}\)
\(A=\frac{27}{62}\)
- chúc bn hok tốt
#Hạ
rút gọn \(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
\(A=\frac{3x5x7x11x13x37-10101}{1212120+40404}=\frac{545454}{1252524}=\frac{27}{62}\)
ai tích mình tích lại
Rút gọn biểu thức sau
A = \(\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
A=3*5*7*11*13*37-10101/1212120+40404
A=10101*(55-1)/10101*(120+4)
A=55-1/120+4
A=54/124=27/62
Rút gọn biểu thức sau
A = \(\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
A=\(\frac{\left(5.11\right)\left(3.7.13.37\right)-10101}{12.10101+4.10101}\)
A=\(\frac{55.10101-10101}{12.10101+4.10101}\)
A=\(\frac{54.10101}{16.10101}\)
A=\(\frac{54}{16}=3,375\)
Rút gọn phân số:A= 3.5.7.11.13.37-10101/1212120+40404
Rút gọn biểu thức sau:\(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
A= [5.11.10101 -10101]/[10101.120+10101.4] = 10101.[5.11-1] / 101.[120+4] = 54/124=27/62
A= [5.11.10101 -10101]/[10101.120+10101.4] = 10101.[5.11-1] / 101.[120+4] = 54/124=27/62
Rút gọn phân số:
\(a,\dfrac{31995-81}{42660-108}\)
\(b,\dfrac{3.5.7.11.13.37-10101}{1212120+40404}\)
\(\)
a: \(\dfrac{31995-81}{42660-108}=\dfrac{31914}{42552}=\dfrac{3}{4}\)
b: \(\dfrac{3\cdot5\cdot7\cdot11\cdot13\cdot37-10101}{1212120+40404}=\dfrac{545454}{1252524}=\dfrac{27}{62}\)
Bài 1: Rút gọn biểu thức sau: A=3.5.7.11.13.37-10101/1212120+40404
Ta có:
\(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)
\(=\frac{\left(3.7.11.13.37\right).5-10101.1}{120.10101+4.10101}\)
\(=\frac{10101.\left(5-1\right)}{10101.\left(120+4\right)}\)
\(=\frac{4}{124}=\frac{1}{31}\)
Sai rồi:
A = 5.11.(3.7.13.37) - 10101/(10101.120 + 10101.4)
= (5.11.10101 - 10101)/(10101.120+10101.4)
= 10101(5.11-1)/10101(120+4)
= 27/62.
A= 5.11.(3.7.13.37)-10101/(10101.120+10101.4)
=(5.11.10101-10101)/(10101.120+10101.4)
=10101.(5.11-1)/10101(120+4)
=27/62
k mik nha mik k lại 100 cái lun