xin chào đáp án là 2 bạn ạ

\(TS\)\(=\)\(2.8^4.27^2+4.6^9\)

\(=2.\left(2^3\right)^4.\left(3^3\right)^2+2^2.\left(2.3\right)^9\)

\(=2.2^{12}.3^6+2^2.2^9.3^9\)

\(=2^{13}.3^6+2^{11}.3^9\)

\(=2^{11}.3^6.\left(2^2+3^3\right)\)

\(=2^{11}.3^6.31\)

\(MS\) \(=\) \(2^7.6^7+2^7.40.9^4\)

\(=2^7.\left(2.3\right)^7+2^7.2^3.5.\left(3^2\right)^4\)

\(=2^7.2^7.3^7+2^{10}.5.3^8\)

\(=2^{10}.3^7.\left(2^4+3.5\right)\)

\(=2^{10}.3^7.31\)

Vậy  \(\frac{TS}{MS}\)\(=\)\(\frac{2^{11}.3^6.31}{2^{10}.3^7.31}\)\(=\)\(\frac{2}{3}\)

PHÂN SỐ À!

a.

=(5^7+5^9)(6^8+6^10)(16-4^2)

=(5^7+5^9)(6^8+6^10)(16-16)

=(5^7+5^9)(6^8+6^10).0

=0

a, =5^16 . 6^18 . 0 

=0

chúc bn hc tốt

a = 0

b = 24

c = 1032

d = 7

Bài 2:

a: 2/6x5/3=10/18=5/9

b: 11/9x5/10=55/90=11/18

c: 3/9x6/8=1/3x3/4=1/4

d: 4/9x12/16=48/144=1/3

e: 25/15x6/7=5/3x6/7=30/21=10/7

f: 6/10x15/20=90/200=9/20

Bài 1

4/5 x 6/7= 24/35

2/9 x 1/2= 2/18= 1/9

1/2 x 8/3= 8/6= 4/3

7/9 x 6/5= 42/45= 14/15

8/7 x 5/9= 40/63

10/11 x 22/15= 220/165= 4/3

Bài 2

2/6 x 5/3= 1/3 x 5/3=5/9

11/9 x 5/10= 11/9 x 1/2= 11/18

3/9 x 6/8= 1/3 x 3/4 =3/12= 1/4

4/9 x 12/16= 4/9 x 3/4= 12/36= 1/3

25/15 x 6/7= 5/3 x 6/7= 30/21= 10/7

6/10 x 15/20= 3/5 x 3/4= 9/20

bài 1

4/5 x 6/7 = 24/35

2/9 x 1/2 = 1/9

1/2 x 8/3 = 4/3

7/9 x 6/5 = 14/15

8/7 x 5/9 = 14/15

8/7 x 5/9 = 40/63

10/11 x 22/15 = 4/3