\(\frac{5}{11}+\frac{1}{14}+\frac{2}{5}+\frac{6}{11}+\frac{3}{4}+\frac{6}{25}+\frac{9}{25}\)

\(=\frac{5}{11}+\frac{6}{11}+\frac{1}{14}+\frac{3}{4}+\frac{2}{5}+\frac{6}{25}+\frac{9}{25}\)

\(=1+\frac{23}{28}+1\)

\(=\frac{79}{28}\)

Bạn có thể xem ở đây : Tại đây

=1/14 +1/4+(2/5+6/25+9/25)+(6/11+5/11)

=4/64+16/64+1+1

=20/64+1+1

=5/16+1+1

=2 và 5/16

\(\frac{5}{11}+\frac{1}{14}+\frac{2}{5}+\frac{6}{11}+\frac{3}{4}+\frac{6}{25}+\frac{9}{25}\)

\(=\left(\frac{5}{11}+\frac{6}{11}\right)+\left(\frac{1}{14}+\frac{3}{4}\right)+\left(\frac{6}{25}+\frac{9}{25}\right)+\frac{2}{5}\)

\(=1+\frac{23}{28}+\frac{3}{5}+\frac{2}{5}\)

\(=1+\frac{23}{28}+1\)

\(=2+\frac{23}{28}\)

\(=\frac{79}{28}\)

Ai k mik mik k lại

\(\frac{79}{28}\)nha bạn

Cho mình sửa lại đề tí nhé bạn , nếu có gì sai liên hệ với mình !

\(\frac{5}{11}+\frac{1}{4}+\frac{2}{5}+\frac{6}{11}+\frac{3}{4}+\frac{6}{25}+\frac{9}{25}\)

\(=\frac{5}{11}+\frac{6}{11}+\frac{1}{4}+\frac{3}{4}+\frac{2}{5}+\frac{6}{25}+\frac{9}{25}\)

\(=1+1+1\)

\(=3\)

\(\frac{79}{28}\)nha bạn

Ta có : 384 : 25 : 4= 384 : 25:4*4:4=384:25*4:4:4=384:100=3,84

\(\frac{37}{25}:\frac{5}{4}:\frac{74}{25}=\frac{37}{25}\cdot\frac{25}{74}:\frac{5}{4}=\frac{37}{74}:\frac{5}{4}=\frac{1}{2}:\frac{5}{4}=\frac{1}{2}\cdot\frac{4}{5}=\frac{2}{5}\)

\(\frac{6}{11}:\frac{4}{3}:\frac{5}{11}:\frac{4}{3}=\frac{6}{11}\cdot\frac{11}{5}:\frac{4}{3}:\frac{4}{3}=\frac{6}{5}\)

2x-(25-4)=11-(15+11)

2x-21=11-26

2x-21=11+(-26)

2x-21=-15

2x=(-15)+21

2x=6

x=6:2

x=3

Chúc bạn hok tốt, bạn nhớ k cho mik nha!!!!!!!

37/25:5/4:74/25=2/5

6/11:4/3:5/11:4/3=27/40

\(a.=\dfrac{2019}{2020}\times\left(\dfrac{4}{11}+\dfrac{5}{11}+\dfrac{2}{11}\right)\\ =\dfrac{2019}{2020}\times1=\dfrac{2019}{2020}\\ b.=\dfrac{25}{27}\times\left(\dfrac{17}{14}-\dfrac{1}{14}-\dfrac{2}{14}\right)\\ =\dfrac{25}{27}\times1=\dfrac{25}{27}\)

Thanks mik chữ cũng hơi ẩu

ai có câu trả lời nhanh nhất sẽ được tick nha !

Bài 2.Tínhnhẩm:

Bài 2.Tínhnhẩm: