\(\frac{3\cdot7\cdot13\cdot37\cdot39-10101}{505050-70707}\)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
A=10101*39-10101/505050+70707
A=10101(39-1)/10101(50+7)
A=38/57=2/3(chia cả tử và mẫu cho 10101)
cho tui đáp số đây đáp số kia lộn
=> \(\frac{10101.39-10101}{10101\left(50-7\right)}\)
=> \(\frac{10101\left(39-1\right)}{10101\left(50-7\right)}\)
=> \(\frac{38}{43}\)
Đặt \(A=\frac{3\cdot7\cdot13\cdot37\cdot39-10101}{505050-70707}\)
\(A=\frac{\left(3\cdot7\cdot13\cdot37\right)\cdot39-10101\cdot1}{50\cdot10101+7\cdot10101}\)
\(A=\frac{10101\cdot39-10101\cdot1}{10101\cdot\left(50+7\right)}\)
\(A=\frac{10101\cdot\left(39-1\right)}{10101\cdot57}\)
\(A=\frac{10101\cdot38}{10101\cdot57}\)
\(A=\frac{38}{57}=\frac{38:19}{57:19}=\frac{2}{3}\)
\(\frac{3.7.13.37.19-10101}{505050+70707}\)=\(\frac{10101.39-10101}{10101.50+10101.7}\)=\(\frac{10101.\left(39-1\right)}{10101.\left(50+7\right)}\)=\(\frac{38}{57}\)=\(\frac{2}{3}\)
Ta có:
\(\frac{3.7.13.37.39-10101}{505050-70707}=\frac{10101.39-10101}{505050-70707}=\frac{10101\left(39-1\right)}{10101\left(50-7\right)}=\frac{39-1}{50-7}=\frac{38}{43}\)
Đề : \(\frac{3\cdot7\cdot13\cdot37\cdot39-10101}{505050-70707}\)
\(\Rightarrow\frac{\left(3\cdot7\cdot13\cdot37\right)\cdot39-10101}{505050-70707}\)
\(\Rightarrow\frac{10101\cdot39-10101}{505050-70707}\)
\(\Rightarrow\frac{10101\cdot\left(39-1\right)}{505050-70707}\)
\(\Rightarrow\frac{10101\cdot38}{50\cdot10101-7\cdot10101}\)
\(\Rightarrow\frac{10101\cdot38}{10101\cdot\left(50-7\right)}\)
\(\Rightarrow\frac{10101\cdot38}{10101\cdot43}\)
\(\Rightarrow\frac{38}{43}\)