2 và 2/3 = 8/3

5,250 = 5 và 250/1000

\(2\frac{3}{8}\)= 2,375

5,250 =\(5\frac{1}{4}\)

Chúc bạn học tốt.

😁😁😁

\(2\frac{3}{8}=\frac{19}{8}\)

\(5,250=5\frac{250}{1000}\) hay \(5\frac{1}{4}\)

4,25=4\(\dfrac{1}{4}\);7,82=7\(\dfrac{41}{50}\);24,102=24\(\dfrac{51}{500}\);27,012=27\(\dfrac{3}{250}\)

\(9\frac{2}{7}=\frac{65}{7}\)

\(9\frac{24}{10}=\frac{57}{5}\)

\(5\frac{3}{7}=\frac{38}{7}\)

\(8\frac{8}{2}=\frac{12}{1}\)

HỌC TỐT

\(9\frac{2}{7}=\frac{65}{7}\)

\(9\frac{24}{10}=\frac{114}{10}\)

\(5\frac{3}{7}=\frac{38}{7}\)

\(8\frac{8}{2}=\frac{24}{2}\)

Hok tốt!! nếu mún rút gọn thì bấm máy tính!!

\(9\frac{2}{7}=\frac{65}{7}\)

\(9\frac{24}{10}=\frac{57}{5}\)

\(5\frac{3}{7}=\frac{38}{7}\)\

\(8\frac{8}{2}=\frac{9}{1}=9\)

#Châu's ngốc

\(\frac{3}{2}=1,5\)

\(\frac{5}{4}=1,25\)

\(\frac{9}{4}=2,25\)

cách làm :

lấy tử chia mẫu số

3 : 2 = 1,5

5 : 4 = 1,25

9 : 4 = 2,25

3/2 = 15/10 = 1,5

5/4 = 125/100 = 1,25

9/4 = 225/100 = 2,25

\(\frac{3}{2}=1,5\)

\(\frac{5}{4}=1,25\)

\(\frac{9}{4}=2,25\)

Câu 6: Khôg có cau nào đúng

Câu 7: C

Câu 8: B

Câu 9: B

Câu 10: D

6Không có đáp án nào đúng x=11/4

7C

8B

9B

10D

\(2\dfrac{3}{4}=\dfrac{2\times4+3}{4}=\dfrac{11}{4}\\ 3\dfrac{4}{5}=\dfrac{3\times5+4}{5}=\dfrac{19}{5}\\ 4\dfrac{3}{5}=\dfrac{4\times5+3}{5}=\dfrac{23}{5}\\ 11\dfrac{12}{13}=\dfrac{11\times13+12}{13}=\dfrac{155}{13}\\ 12\dfrac{11}{13}=\dfrac{12\times13+11}{13}=\dfrac{167}{13}\\ 3\dfrac{3}{5}=\dfrac{3\times5+3}{5}=\dfrac{18}{5}\)

2\(\dfrac{3}{4}\)=\(\dfrac{11}{4}\)

3\(\dfrac{4}{5}\)=\(\dfrac{19}{5}\)

4\(\dfrac{3}{5}\)=\(\dfrac{23}{5}\)

11\(\dfrac{12}{13}\)=\(\dfrac{155}{13}\)

12\(\dfrac{11}{13}\)=\(\dfrac{167}{13}\)

3\(\dfrac{3}{5}\)=\(\dfrac{18}{5}\).