Rút gọn rồi tính:                                                                                                                                               \(a.\frac{16}{24}-\frac{1}{3}=\frac{2}{3}-\frac{1}{3}=\frac{1}{3}\)

\(b.\frac{4}{5}-\frac{12}{60}=\frac{4}{5}-\frac{1}{5}=\frac{3}{5}\)

Tính rồi rút gọn:

\(a.\frac{17}{6}-\frac{2}{6}=\frac{15}{6}\)

\(b.\frac{16}{15}-\frac{11}{15}=\frac{5}{15}=\frac{1}{3}\)

\(c.\frac{19}{12}-\frac{13}{12}=\frac{6}{12}=\frac{1}{2}\)

1a2/3-1/3=1/3            c4/5-1/5=3/5             tinh roi rut gon 17/6-2/6=15/6=5/2             16/15-11/15=5/15=1/3           19/12-13/12=6/12=1/2

chuc bn hoc tot

lớp 1 à cu

`7/6 - 4/16`

`=7/6 - 1/4`

`= 28/24 - 6/24`

`= 22/24`

`= 11/12`

\(\dfrac{7}{6}-\dfrac{4}{16}=\dfrac{7}{6}-\dfrac{1}{4}=\dfrac{14}{12}-\dfrac{3}{12}=\dfrac{11}{12}\)

7/6 - 4/16

= 7/6 - 1/4

= 22/24 = 11/12

Rút gọn rồi tính:

a) $\frac{16}{24}–\frac{1}{3}=\frac{2}{3}–\frac{1}{3}=\frac{2–1}{3}=\frac{1}{3}$     

b) $\frac{4}{5}–\frac{12}{60}=\frac{4}{5}–\frac{1}{5}=\frac{3}{5}$

Tính rồi rút gọn:

a) $\frac{17}{6}–\frac{2}{6}=\frac{17–2}{6}=\frac{15}{6}=\frac{5}{2}$             

b) $\frac{16}{15}–\frac{11}{15}=\frac{16–11}{15}=\frac{5}{15}=\frac{1}{3}$

c) $\frac{19}{12}–\frac{13}{12}=\frac{19–13}{12}=\frac{6}{12}=\frac{1}{2}$

$\frac{{15}}{6} = \frac{{15:3}}{{6:3}} = \frac{5}{2}$

$\frac{{12}}{{16}} = \frac{{12:4}}{{16:4}} = \frac{3}{4}$

 $\frac{{35}}{{105}} = \frac{{35:35}}{{105:35}} = \frac{1}{3}$

Bài 1: 

\(\dfrac{x^2-3}{x+\sqrt{3}}=\dfrac{\left(x+\sqrt{3}\right)\left(x-\sqrt{3}\right)}{x+\sqrt{3}}=x-\sqrt{3}\)

Bài 2: 

a) Ta có: \(A=\sqrt{16x+16}-\sqrt{9x+9}+\sqrt{4x+4}+\sqrt{x+1}\)

\(=4\sqrt{x+1}-3\sqrt{x+1}+2\sqrt{x+1}+\sqrt{x+1}\)

\(=4\sqrt{x+1}\)

b) Để A=16 thì \(\sqrt{x+1}=4\)

\(\Leftrightarrow x+1=16\)

hay x=15

Viết latex cho dễ hiểu bn ơi

a) \(\dfrac{2}{10}=\dfrac{2:2}{10:2}=\dfrac{1}{5}\)

b) \(\dfrac{9}{6}=\dfrac{9:3}{6:3}=\dfrac{3}{2}\)

c) \(\dfrac{5}{20}=\dfrac{5:5}{20:5}=\dfrac{1}{4}\)

d) \(\dfrac{6}{16}=\dfrac{6:2}{16:2}=\dfrac{3}{8}\)

\(\dfrac{5}{15}+\dfrac{48}{16}=\dfrac{1}{3}+3=\dfrac{1}{3}+\dfrac{9}{3}=\dfrac{10}{3}\)

\(\dfrac{6}{9}:\dfrac{12}{36}=\dfrac{2}{3}:\dfrac{1}{3}=\dfrac{2}{3}\times\dfrac{3}{1}=\dfrac{6}{3}=2\)

\(\dfrac{4}{12}\times\dfrac{56}{14}=\dfrac{1}{3}\times4=\dfrac{4}{3}\)

4/3

5/3

10/9

3

2/3

8/6=4/3

 25/15=5/3

90/81=10/9

 48/16=3

 8/12=2/3

4/3

5/3

10/9

 3/4

 2/3

\(\dfrac{16^3.3^{10}+144.6^9}{4^6.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+144.6^9}{4.4.4.4.4.4.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+144.6^9}{16.16.16.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+4.6^2.6^9}{16^3.3^{12}+6^{11}}\)

=\(\dfrac{4.6^{11}}{3^2+6^{11}}\)

=\(\dfrac{4}{9}\)

Ko chắc

tử số  4⁶.3¹⁰+144.6⁹ = 2¹².3¹⁰+2.2³.3.3.6⁹

= 6⁹.(2³.3)+(2³.3).6⁹.6 = 6⁹.(2³.3).(6+1) = 6⁹.(2³.3).7 = 6⁹.2.3.2².7

= 6¹⁰.4.7

mẫu số 4⁶.3¹²+6¹¹ = 2¹².3¹²+6¹¹ = 6¹²+6¹¹ = 6¹¹.6+6¹¹ 

= 6¹¹.(6+1) = 6¹¹.7

\(\dfrac{16^{3}.3^{10}+144.6^{9}}{4^{6}.3^{12}.6^{11}}=\dfrac{6^{10}.4.7}{6^{11}.7}\)=\(\dfrac{4}{6}=\dfrac{2}{3}\)

 mà cậu trình bày trên phân số nhé để nhanh thì mình chia ra thôi

\(\dfrac{16^3.3^{10}+144.6^9}{4^6.3^{12}+6^{11}}\) 

=\(\dfrac{2^{12}.3^{10}+2.2^3.3.3.6^9}{2^{12}.3^{12}+6^{11}}\) 

=\(\dfrac{6^9.\left(2^3.3\right)+\left(2^3.3\right).6^9.6}{6^{12}+6^{11}}\) 

=\(\dfrac{6^9.\left(2^3.3\right).\left(6+1\right)}{6^{11}.6+6^{11}}\) 

=\(\dfrac{6^9.2.3.2^2.7}{6^{11}.\left(6+1\right)}\) 

=\(\dfrac{6^{10}.4.7}{6^{11}.7}\) 

=\(\dfrac{4}{6}=\dfrac{2}{3}\)

ta có khoảng cách dãy số là 5 vậy thì có số hạng là

(51-1):5+1=11(số hạng)

A=(1+51).11:2=286

 vậy là rút gọn