nhớ ghi rõ cách làm ( tính nhanh )

Ta có : \(\frac{3}{5}+\frac{6}{11}+\frac{7}{13}+\frac{2}{5}+\frac{5}{11}+\frac{19}{13}+\frac{1}{2}+\frac{2}{3}-\frac{1}{6}\)

\(=\left(\frac{3}{5}+\frac{2}{5}\right)+\left(\frac{6}{11}+\frac{5}{11}\right)+\left(\frac{7}{13}+\frac{19}{13}\right)+\left(\frac{1}{2}+\frac{2}{3}-\frac{1}{6}\right)\)

\(=1+1+2+1=5\)

\(\frac{3}{5}+\frac{6}{11}+\frac{7}{13}+\frac{2}{5}+\frac{5}{11}+\frac{19}{13}:\frac{1}{2}+\frac{2}{3}-\frac{1}{6}\)

\(=\left(\frac{3}{5}+\frac{2}{5}\right)+\left(\frac{19}{13}-\frac{7}{13}\right)+\left(\frac{6}{11}+\frac{5}{11}\right):\frac{2}{3}+\frac{1}{6}\)

\(=1+1+1:\frac{2}{3}+\frac{1}{6}\)

\(=3:\frac{2}{3}+\frac{1}{6}\)

\(=\frac{9}{2}+\frac{1}{6}\)

\(=\frac{14}{3}\)

= (3/5 + 2/5) + (6/11 + 5/11) + (7/13 + 19/13) : 1/2 + 2/3 - 1/6

= (1 + 1 + 2) : (1/2 + 4/6 - 1/6)

= 4 : (1/2 + 1/2)

= 4 : 1

= 4

Vậy kết quả bằng 4

giúp mk với

mong ban ghi han hoi :)

khó đọc quá

              Bài làm :

Ta có :

\(\frac{7}{11}\div\left(\frac{2}{10}+\frac{5}{11}\right)+\frac{1}{36}=\frac{7}{11}\div\frac{36}{55}+\frac{1}{36}=\frac{35}{36}+\frac{1}{36}=\frac{36}{36}=1\)

Ta có: \(\frac{7}{11}\div\left(\frac{2}{10}+\frac{5}{11}\right)+\frac{1}{36}\)

\(=\frac{7}{11}\div\frac{36}{55}+\frac{1}{36}\)

\(=\frac{35}{36}+\frac{1}{36}\)

\(=1\)

(-3/4+2/3);5/11+(-1/4+1/3):5/11

=-1/12:5/11+1/12:5/11

=(-1/12:+1/12):5/11

=0:5/11=0

trả lời dùm mình đi

viết rõ lại cái đề giùm tui tui mới làm được

a. 6 và 5/3 + 7 và 13/8 +3 và 1/3- 4 và 5/8

=23/3+69/8+4/3-37/8

=391/24+4/3+37/8=141/8-37/8=103/8

b.=(27/5+69/11)-(17/5-52/11)

=642/55+73/55=13

\(\left(5-\frac{23}{7}\right)×\frac{63}{24}+\frac{11}{9}:\frac{2}{3}\)

\(=\frac{12}{7}×\frac{63}{24}+\frac{11}{9}:\frac{2}{3}\)

\(=\frac{9}{2}+\frac{11}{9}:\frac{2}{3}\)

\(=\frac{9}{2}+\frac{11}{6}\)

\(=\frac{19}{3}\)

Bằng 19/3 nha

    chúc bn hok tốt

\(\left(5-\frac{23}{7}\right)\times\frac{63}{24}+\frac{11}{9}:\frac{2}{3}\)

\(=\frac{12}{7}\times\frac{63}{24}+\frac{11}{6}\)

\(=\frac{9}{2}+\frac{11}{6}\)

\(=\frac{19}{3}\)

Học tốt