a) 9^45 và 27^30

9^45 = (3^2)^45 ; 27^30 = (3^3)30

=  3^90 và 3^90

Vậy 9^45 và 27^30

\(A=\frac{3333}{4545}+\frac{1}{15}+\frac{1111}{5555}\)

\(=\frac{11}{15}+\frac{1}{15}+\frac{1}{5}\)

\(=\frac{12}{15}+\frac{3}{15}\)

\(=1\)

\(A=\frac{3333}{4545}+\frac{1}{15}+\frac{1111}{5555}\)

\(=\frac{11}{15}+\frac{1}{15}+\frac{1}{5}\)

\(=\frac{12}{15}+\frac{3}{15}\)

\(=1\)

\(A=\frac{3333}{4545}+\frac{1}{15}+\frac{1111}{5555}\)

   \(=\frac{11}{15}+\frac{1}{15}+\frac{1}{5}\)

   \(=\frac{12}{15}+\frac{3}{15}\)

   \(=1\)

8888 nha bạn ~

kết quả là :

3333 + 5555 = 8888

đáp số : 8888

k mik nha bn

thank you

3 333 + 5 555

= 1 111 x 8

= 8 888. 

Yeah !!

7000+2000=9000

5555+2222=7777

3333+1111=4444

T ick nha, mik nhanh

7000 + 2000 = 9000

5555 + 2222 = 7777

3333 + 1111 = 4444

9000 

7777

4444

\(\left(\frac{141414}{151515}+\frac{3333}{5555}\right):3\)

\(=\left(\frac{14}{15}+\frac{3}{5}\right)\cdot\frac{1}{3}\)

\(=\frac{23}{15\cdot3}\)

\(=\frac{23}{45}\)

\(\left(\frac{141414}{151515}+\frac{3333}{5555}\right)\div3\)

\(=\left(\frac{14}{15}+\frac{3}{5}\right)\times\frac{1}{3}\)

\(=\frac{23}{15\times3}\)

\(=\frac{23}{45}\)

\(\left(\frac{141414}{151515}+\frac{3333}{5555}\right):3\)

\(=\left(\frac{14}{15}+\frac{3}{5}\right):3\)

\(=\frac{23}{15}:3\)

\(=\frac{23}{45}\)