\(\dfrac{3}{5}+\dfrac{1}{2}+\dfrac{3}{10}=\dfrac{6}{10}+\dfrac{5}{10}+\dfrac{3}{10}=\dfrac{14}{10}=\dfrac{7}{5}\)

`3/5+1/2+3/10=6/10+5/10+3/10=14/10=7/5`

\(\dfrac{3}{5}+\dfrac{1}{2}+\dfrac{3}{10}\\ =\dfrac{6}{10}+\dfrac{5}{10}+\dfrac{3}{10}\\ =\dfrac{14}{10}\\ =\dfrac{7}{5}\)

1/10 + 2/10 + 3/10...9/10 + 10/10 = 55

Chắc lun.

Học tốt

\(\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+...+\frac{9}{10}+\frac{10}{10}\)

\(=\frac{1+2+3+4+5+6+7+8+9+10}{10}\)

\(=\frac{55}{10}=\frac{11}{2}\)

=(1+2+3+4+5+6+7+8=9+10)/10

=55/10=11/2

 \(\dfrac{1}{10}+\dfrac{2}{10}+\dfrac{3}{10}+\dfrac{4}{10}+\dfrac{5}{10}+\) \(\dfrac{6}{10}+\dfrac{7}{10}+\dfrac{8}{10}+\dfrac{9}{10}\)

\(=\dfrac{1+2+3+4+5+6+7+8+9}{10}\)

\(=\dfrac{45}{10}=\dfrac{9}{2}\)

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9/10 = 44/10 = 22/5

bằng 9/2 nhé

giai giup voi

\(10^2=100\)

\(10^3=1000\)

\(10^4=10000\)

\(10^5=100000\)

\(10^6=1000000\)

\(10^2=100;10^3=1000;10^4=10000;10^5=100000;10^6=1000000\)

            2^10:2^8
Cách 1=2^2
           =4
Cách 2 =1024:256
           =4

\(A=\frac{2^{10}.13+2^{10}.65}{2^8.104}=\frac{2^{10}.\left(13+65\right)}{2^8.2^3.13}=\frac{2^{10}.78}{2^{11}.13}=\frac{78}{2.13}=\frac{78}{26}=3\)