Tính nhanh
374:(17×11)
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6/11+25/17+5/11-8/17
= (6/11+5/11)+(25/17-8/17)
= 11/11 + 17/17
= 1 + 1
= 2
Nhấn đúng cho mk nha Trần Đức Mạnh
\(\frac{6}{11}+\frac{25}{17}+\frac{5}{11}-\frac{8}{17}\)
=\(\left(\frac{6}{11}+\frac{5}{11}\right)+\left(\frac{25}{17}-\frac{8}{17}\right)\)
=1+1
=2
\(\frac{11}{17}\times\left(\frac{38}{45}\times\frac{17}{11}\right)\)
\(=\frac{11}{17}\times\frac{17}{11}\times\frac{38}{45}\)
\(=1\times\frac{38}{45}\)
\(=\frac{38}{45}\)
\(=\dfrac{11}{17}:\dfrac{19}{40}+\dfrac{11}{17}:\dfrac{23}{20}=\dfrac{11}{17}\cdot\left(\dfrac{40}{19}+\dfrac{20}{23}\right)=\dfrac{11}{17}\cdot\dfrac{1300}{437}=\dfrac{14300}{7429}\)
\(35\times11+11\times17+11\)
\(=11\times\left(35+17+1\right)\)
\(=11\times53\)
\(=583\)
k mk nha
thank you very much
35 * 11 + 11 * 17 + 11
= 35 * 11 + 11 * 17 + 11 * 1
= 11 * ( 35 + 17 + 1 )
= 11 * 53
= 583
Bài này quá dễ
a: =35/17-18/17-9/5+4/5
=1-1=0
b: =-7/19(3/17+8/11-1)
=7/19*18/187=126/3553
c: =26/15-11/15-17/3-6/13
=1-6/13-17/3
=7/13-17/3=-200/39
\(\frac{-3}{11}:\frac{17}{15}+\frac{-3}{11}:\frac{17}{2}+\frac{8}{11}\)
\(=\frac{-3}{11}.\frac{15}{17}+\frac{-3}{11}.\frac{2}{17}+\frac{8}{11}\)
\(=\frac{-3}{11}.\left(\frac{15}{17}+\frac{2}{17}\right)+\frac{8}{11}\)
\(=\frac{-3}{11}.1+\frac{8}{11}\)
\(=\frac{-3}{11}+\frac{8}{11}\Rightarrow\frac{5}{11}\)
K mik nhe
\(\frac{-3}{11}:\frac{17}{15}+\frac{-3}{11}:\frac{17}{2}+\frac{8}{11}\)
\(=\frac{-3}{11}.\left(\frac{15}{17}+\frac{2}{17}\right)+\frac{8}{11}\)
\(=\frac{-3}{11}.1+\frac{8}{11}\)
=\(\frac{-3}{11}+\frac{8}{11}\)
\(=\frac{5}{11}\)
374 : ( 17 x 11 ) = 2
tchs mình nha
374:(17x11)=2
ai thấy đúng thì k nha