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2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 x 4 + 4 + 4
= (2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 )+(3 + 3 + 3 + 3 + 3 + 3 + 3 + 3)+ ( 4 x 4 )+ (4 + 4 + 4 )
= 16 + 24 + 16 + 12
= 88
mk ko pít đúng hay sai nữa nhưng pạn k cho mk nha pạn
2+2+2+2+2+2+2+2+3+3+3+3+3+3+3+3+4+4x4+4+4
trả lời ......
99.9% làm sai
2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 x 4 + 4 + 4
= (2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 )+(3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 x 4 + 4 + 4 )
= 16 + 56
=72
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a) 2/9 : 2/3 x 1/2
= 2/9 x 3/2 x 1/2
= 6/18 x 1/2
= 6/36
b) 2 + 1/4 x 4/3
= 2 + 4/7
= 2/1(7) + 4/7
= 14/7 + 4/7
= 18/7
c) 3 x 1/2 x 1/4
= 3/1 x 1/2 x 1/4
= 3/2 x 1/4
= 3/8
#Hok_tốt
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Đề bài sai nhé!
A, X x 4/8 = 4/8
x = 4/8 : 4/8
x = 1
B, 1/9 + x + 1 - 3/18
= 1/9 + 1 + 1 - 3/18
= 35/18
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Ta có: \(\frac{5.3+6}{8.3+9}=\frac{15+6}{24+9}=\frac{21}{33}=\frac{7}{11}\)
\(\frac{4.4-6}{7.4-8}=\frac{16-6}{28-8}=\frac{10}{20}=\frac{1}{2}\)
= 183156496 bạn nhé ! ^_^
{4x4:4+4-4}x45789124=183156496