Ta có :

\(\frac{225}{100}\)= \(\frac{9}{4}\)

​Ta có sơ đồ :

Số bé : I-----I-----I-----I-----I

Số lớn : I----I-----I-----Í-----I-----I-----Í-----I-----I-----I

​Số bé là :

2,25 : ( 9 - 4 ) x 4 = 1,8

Đáp số : 1,8

tích đi giải cho kết bạn không ông đăng à

1,8

Tick nhé 

gfggfgf

Đổi : 2,25 = \(\frac{9}{4}\)

Ta có sơ đồ :

Số bé : l-----l-----l-----l-----l  2,25

Số lớn :l-----l-----l-----l-----l-----l-----l-----l-----l------l

Theo sơ đồ , hiệu số phần bằng nhau là :

       9 - 4 = 5 ( phần )

Số bé là :

  2,25 : 5 x 4 = 1,8

 Đáp số : 1,8

2,25 = 9/4

Hiệu số phần băng nhau là: 9 - 4 = 5 (Phần)

Số bé là: 2,25 : 5 x 9 = 4,05 

tỉ số=2.25=9/4

Số bé là:

2.25:(9-4)x4=1.8

Đáp số:1.8

ti so la 2,25/1

hieu so phan bang nhau la 1,25

vay so be la

2,25:1,25x1=1,8

so be la 1,8 h minh nha ban 

X-2.25Y=0

va X-1=2.25

giaipt X=4.05

          Y=1.8

2,25 = $\frac{9}{4}$94 

Hiệu số phần bằng nhau là:

9 - 4 = 5 phần

Số bé là:

2,25 : 5 x 4 = 1,8

Đáp số : 1,8

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

Hiệu số phần bằng nhau là:

9 - 4 = 5 phần

Số bé là:

2,25 : 5 x 4 = 1,8

Đáp số : 1,8

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de ma 13 do

\(\frac{225}{100}\)= \(\frac{9}{4}\)

Ta có sơ đồ :

Số bé : I-----I-----I-----I-----I

Số lớn :I-----I-----I-----I-----I-----I-----I-----I-----I-----I

Số bé là :

2,25 : ( 9 - 4 ) x 4 = 1,8

Đáp số : 1,8