\(A=\frac{3}{5}+6\frac{5}{6}.\left(11\frac{5}{20}-9\frac{1}{4}\right):8\frac{1}{3}\)

\(A=\frac{3}{5}+\frac{41}{6}.\left(\frac{23}{2}-\frac{37}{4}\right):\frac{25}{3}\)

\(A=\frac{3}{5}+\frac{41}{6}.\frac{9}{4}.\frac{3}{25}\)

\(A=\frac{3}{5}+\frac{41.9.3}{6.4.25}\)

\(A=\frac{3}{5}+\frac{41.3.3.3}{3.2.2.2.25}\)

\(A=\frac{3}{5}+\frac{41.9}{8.25}\)

\(A=\frac{3}{5}+\frac{369}{200}\)

\(A=\frac{489}{200}\)

Vậy \(A=\frac{489}{200}\)

5/6+6*5/6*(11*5/20-9*1/4)/8*1/3

1.

\(\frac{3}{5}+\left\{\frac{2}{8}+\frac{2}{5}+\frac{6}{8}\right\}\)

\(=\frac{3}{5}+\left(\frac{10}{40}+\frac{36}{40}+\frac{30}{40}\right)\)

\(=\frac{3}{5}+\frac{76}{40}\)

\(=\frac{24}{40}+\frac{76}{40}\)

\(=\frac{100}{40}=\frac{5}{2}\)

2. 

\(3\frac{2}{9}-\left\{1\frac{5}{8}+1\frac{2}{9}\right\}\)

\(=\frac{29}{9}-\left\{\frac{13}{8}+\frac{11}{9}\right\}\)

\(=\frac{29}{9}-\left\{\frac{117}{72}+\frac{88}{72}\right\}\)

\(=\frac{29}{9}-\frac{205}{72}\)

\(=\frac{232}{72}-\frac{205}{72}\)

Chúc cậu học tốt !!!

\(=\frac{27}{72}=\frac{3}{8}\)

\(a,3\frac{7}{9}=\frac{3\cdot9+7}{9}=\frac{34}{9}\)

\(12\frac{9}{11}=\frac{12\cdot11+9}{11}=\frac{141}{11}\)

\(6\frac{2}{7}=\frac{6\cdot7+2}{7}=\frac{44}{7}\)

\(b,14\frac{1}{8}=\frac{14\cdot8+1}{8}=\frac{113}{8}\)

\(124\frac{4}{35}=\frac{124\cdot35+4}{35}=\frac{4344}{35}\)

a 10^30 va 2^100

ta co 10^30 =(10^3)^10 =30^10

        2^100=(2^10)^10 =20^10

=>30^10>20^10 =>10^30>2^100

Bai nay de ma bn 

Bn tinh gia tri cac so ra xong so sanh!

Bn tu lam nha,mk chi goi y thui

nguyễn minh ngọc oi nếu thây dễ thì bạn thử lam hết xem có đúng ko ? rồi nói dễ