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2,25 = 9/4
Hiệu số phần băng nhau là: 9 - 4 = 5 (Phần)
Số bé là: 2,25 : 5 x 9 = 4,05
ti so la 2,25/1
hieu so phan bang nhau la 1,25
vay so be la
2,25:1,25x1=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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\(\frac{225}{100}\)= \(\frac{9}{4}\)
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
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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
mk chẳng bít !
So be la :1,8.
Thương tức là tỉ số : 2,25 = 9/4
Số bé là : 2,25 : ( 9 - 4 ) x 4 = 1,8
Đáp số : 1,8
2,25 = \(\frac{225}{100}\)= \(\frac{9}{4}\)
=> Số lớn bằng \(\frac{9}{4}\) số bé
Ta có sơ đồ :
Số lớn : 9 phần
Số bé : 4 phần
Số bé là :
2,25 : ( 9 - 4 ) x 4 = 1,8
Đáp số : số bé : 1,8
Ta có a:b=2,25 => a=2.25xb
a-b=2.25
thay a vào, ta có:
(2.25 x b) - b= 2.25
(2,25 x b) - b x 1=2,25
b x (2,25-1) =2,25
b x 1,25 = 2,25
=> b = 2,25 :1,25=1,8
a=2,25-1,8= 0,45
=> số bé = 0,45
Đổi : 2,25 = $\frac{9}{4}$94
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