\(\text{(-3)+(-14)+27+(-10)}\)

\(\text{=(-17)+27+(-10)}\)

\(=10+\left(-10\right)\)

\(=0\)

(-3)+(-14)+27+(-10)

=-17+27+(-10)

=10+(-10)

=0

0 nha bn

\(\frac{14}{27}:\frac{6}{5}+\frac{3}{10}=\)

\(\frac{2}{3}:\frac{6}{5}+\frac{3}{10}\)

\(=\frac{5}{9}+\frac{3}{10}=\frac{77}{90}\)

14/27 : 6/5 + 3/10

= 14 / 27 x 5 / 6 + 3 / 10

=      35 / 81 + 3 / 10

=        593 / 810

sai đề:

14/27:7/18x6/5+3/10

\(\left(-30\right)+15+10+\left(-15\right)\)

\(=\left[\left(-30\right)+10\right]+\left[15+\left(-15\right)\right]\)

\(=-20+0=-20\)

\(17+\left(-12\right)+25-17\)

\(=\left(17-17\right)+\left[\left(-12\right)+25\right]\)

\(=0+13=13\)

\(\left(-14\right)+250+\left(-16\right)+\left(-250\right)\)

\(=\left[\left(-14\right)+\left(-16\right)\right]+\left[250+\left(-250\right)\right]\)

\(=-30+0=-30\)

19/10=1.9

14/28 : 7/18 x 6/5 + 3/10

= 9/7 x 6/5 + 3/10

= 54/35 + 3 / 10

=108/70 + 21/70

= 129/70

Tk mk nha

\(\frac{14}{27}:\frac{7}{18}x\frac{6}{5}+\frac{3}{10}=\frac{4}{3}x\frac{6}{5}+\frac{3}{10}=\frac{8}{5}+\frac{3}{10}=\frac{19}{10}\)

\(a,81^3=\left(9^2\right)^3=9^6\)

Vì \(9^{27}>9^6\) nên \(9^{27}>81^3\)

\(b,5^{14}=\left(5^2\right)^7=25^7\)

Vì \(25^7< 27^7\) nên \(5^{14}< 27^7\)

\(c,10^{30}=\left(10^3\right)^{10}=1000^{10}\)

\(2^{100}=\left(2^{10}\right)^{10}=1024^{10}\)

Vì \(1000^{10}< 1024^{10}\) nên \(10^{30}< 2^{100}\)

=4/3x6/5+3/10

=8/5+3/10

=19/10

19/10

\(\frac{14}{27}:\frac{7}{18}\cdot\frac{6}{5}+\frac{3}{10}\)

\(=\frac{14}{27}\cdot\frac{18}{7}\cdot\frac{6}{5}+\frac{3}{10}\)

\(=\frac{14\cdot18\cdot6}{27\cdot7\cdot5}+\frac{3}{10}\)

\(=\frac{2\cdot7\cdot9\cdot2\cdot3\cdot2}{3\cdot9\cdot7\cdot5}+\frac{3}{10}\)

\(=\frac{8}{5}+\frac{3}{10}\)

\(=\frac{16}{10}+\frac{3}{10}\)

\(=\frac{19}{10}\)

Đáp án : \(\frac{19}{10}\)

\(\frac{14}{27}:\frac{7}{18}\cdot\frac{6}{5}+\frac{3}{10}\)

\(=\frac{4}{3}\cdot\frac{6}{5}+\frac{3}{10}\)

\(=\frac{8}{5}+\frac{3}{10}\)

\(=\frac{19}{10}\)

. là nhân nha

bằng 19/10 nha bạn

chú ý:

/ là phân số

\(=\frac{19}{10}\)