Question

Bài 1: Rút gọn biểu thức sau:   A=3.5.7.11.13.37-10101/1212120+40404

Answer 1

Ta có:

\(A=\frac{3.5.7.11.13.37-10101}{1212120+40404}\)

\(=\frac{\left(3.7.11.13.37\right).5-10101.1}{120.10101+4.10101}\)

\(=\frac{10101.\left(5-1\right)}{10101.\left(120+4\right)}\)

\(=\frac{4}{124}=\frac{1}{31}\)

Answer 2

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.

Answer 3

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

Answer 4

A=5.11.(3.7.13.37)-10101/120.10101+4.10101

A=55.10101-10101/10101.(124+4)

A=10101.(55-1)/10101.124

A=1.54/1.124

A=54/124

A=27/62

Answer 5

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