Question

7/2-2/7+1/2

phân số ghi rõ cách làm ai ghi đầy đủ mình tick

Answer 1

7/2 - 2/7 = 45/14

45/14 + 1/2 = 26/7

Vậy 7/2 - 2/7 + 1/2 = 26/7 

Answer 2

7/2-2/7+1/2=45/14+1/2=26/7

Ai thấy đúng thì kết bạn vs mink nhé

Answer 3

= 26/7

Answer 4

\(\frac{7}{2}-\frac{2}{7}+\frac{1}{2}=\)\(\left(\frac{7}{2}-\frac{1}{2}\right)+\frac{2}{7}=\frac{6}{2}+\frac{2}{7}=\frac{42}{14}+\frac{4}{14}=\frac{46}{14}=\frac{23}{7}\)

k cho mk nha

Answer 5

\(\frac{7}{2}\)-   \(\frac{2}{7}\)+   \(\frac{1}{2}\)=   \(\frac{49}{14}\)-   \(\frac{4}{14}\)+  \(\frac{1}{2}\)=  \(\frac{45}{4}\)+ \(\frac{1}{2}\)=  \(\frac{90}{8}\)+  \(\frac{4}{8}\)= \(\frac{94}{8}\)= \(\frac{47}{4}\)

Answer 6

\(\frac{30}{7}\)

K mình đi

Answer 7

\(\frac{7}{2}\)-\(\frac{2}{7}\)+\(\frac{1}{2}\)=\(\frac{49}{14}\)-\(\frac{4}{14}\)+\(\frac{7}{14}\)

                             =\(\frac{45}{14}\)+\(\frac{7}{14}\)

                             =\(\frac{52}{14}\)=\(\frac{26}{7}\)

Nhớ k cho mk nha!

Answer 8

\(\frac{7}{2}-\frac{2}{7}+\frac{1}{2}=\frac{7}{2}-\frac{2}{7}=\frac{49}{14}-\frac{4}{14}=\frac{45}{14}-\frac{1}{2}=\frac{90}{28}-\frac{14}{28}=\frac{76}{14}=\frac{38}{7}\)

Answer 9

7/2 - 2/7 + 1/2 = 45/14 + 1/2 = 26/7