Question

Giải thích vì sao : 
\(3\frac{1}{4}=\frac{13}{4}\)

Ta có \(3\frac{1}{4}\)= \(3+\frac{1}{4}\)=...................................................

Answer 1

3 1/4=3+1/4=3/1+1/4=12/4+1/4=13/4

Answer 2

3 1/4 = 13/4

Vì:

3 1/4 = 3 + 1/4 = 13/4 = 3, 25

Answer 3

\(3\frac{1}{4}\)= \(\frac{13}{4}\)

Ta có:

\(3\frac{1}{4}\)= \(3\)+ \(\frac{1}{4}\)= \(\frac{13}{4}\)= \(3,25\)

Answer 4

3 1/4 = 13/4 vì

3 1/4= 3+1/4 =13/4 =3/25

Answer 5

Ta có \(3\)\(\frac{1}{4}\)= \(3\)+ \(\frac{1}{4}\)= \(\frac{12}{4}\)+ \(\frac{1}{4}\)= \(\frac{13}{4}\)nên \(3\)\(\frac{1}{4}\)= \(\frac{13}{4}\)

Answer 6

=13/4

Answer 7

ta lấy 3.4+1=13,r thêm phần là xong

Answer 8

\(3\frac{1}{4}\)= \(\frac{3x4+1}{4}\)= \(\frac{13}{4}\)

\(3\frac{1}{4}\)= 3 + \(\frac{1}{4}\)= 3 + 0,25 = 3,25

Answer 9

3,1/4=3*4+1/4=13/4