Rút gọn = 377.733 + 722/ 379.733-744
Rút gọn 377.733+722/379.733-744
\(=\frac{\left(379-2\right).733+722}{379.733-744}=\frac{379.733-1466+722}{379.733-744}=\frac{379.733-744}{379.733-744}=1\)
Dạ cho mình hỏi là số 744 ở phân số cuối là bạn lấy ở đâu vậy ạ
Thu gọn \(\frac{377.733+722}{379.733-744}\)
\(\frac{377.733+722}{379.733-744}\)=\(\frac{377+722}{379-744}\)
tích đúng cho mk nhé
BT1: Rút gọn
1) \(\frac{377.733+722}{379.733-744}\)
Tính: Rút gọn
\(A=\frac{377.733+722}{379.733-744}\)
\(B=\frac{579.933-944}{577.933+922}\)
Rút gọn :
a) \(\frac{579.933-944}{577.933+922}\)
b) \(\frac{377.733+722}{379.733-744}\)
377.733+722/379.733-744 -- 577.933+922/579.933-944
rut gon giup
Tính Nhanh: M=\(\frac{377.733+722}{379.733-744}\)
\(M=\frac{377\cdot733+722}{379\cdot733-744}=\frac{377\cdot733+722}{377\cdot733+2\cdot733-744}=\frac{377\cdot733+722}{377\cdot733+722}=1\)
Tính
\(P=\dfrac{2010.2011-1}{2010^2+2009}+\dfrac{744-379.733}{377.733+722}\)
P=\(\dfrac{2010\left(2010+1\right)-1}{2010^2+2009}+\dfrac{744-\left[\left(377+2\right).733\right]}{377.733+722}\)
=\(\dfrac{2010^2+2010-1}{2010^2+2009}+\dfrac{744-\left[377.733+1466\right]}{377.733+722}\)
=\(\dfrac{2010^2+2009}{2010^2+2009}+\dfrac{-722-377.733}{377.733+722}\)
=\(1+\left(-1\right)=0\)
Vậy P=0
\(P=\dfrac{2010\cdot2011-1}{2010^2+2009}+\dfrac{744-379\cdot733}{377\cdot733+722}=\dfrac{2010\cdot2011-2010+2009}{2010^2+2009}+\dfrac{733-379\cdot733+11}{377\cdot733+733-11}=\dfrac{2010\cdot\left(2011-1\right)+2009}{2010^2+2009}+\dfrac{733\cdot\left(1-379\right)+11}{733\cdot\left(377+1\right)-11}=\dfrac{2010^2+2009}{2010^2+2009}+\dfrac{733\cdot\left(-378\right)+11}{733\cdot378-11}=1+\left(-1\right)=0\)
Thu gọn A = \(\frac{377.733+722}{379.733-744}\)
\(B=\frac{579.933-944}{577.933+922}\)