Question

Tìm số tự nhiên X

a)4/5=X/35

b)12/15=72/X

c)125/300=5/X

d)x/9=36/54

Giúp mình với.Mình cần gấp

Answer 1

a) \(\frac{4}{5}=\frac{28}{35}\)

b) \(\frac{12}{15}=\frac{72}{90}\)

c) \(\frac{125}{300}=\frac{5}{12}\)

d) \(\frac{6}{9}=\frac{36}{54}\)

/HT\

Answer 2

a) \(\frac{4}{5}=\frac{28}{35}\)      \(\text{X}=28\)

b) \(\frac{12}{15}=\frac{72}{90}\)   \(\text{X}=90\)

c) \(\frac{125}{300}=\frac{5}{12}\)  \(\text{X}=12\)

d) \(\frac{6}{9}=\frac{36}{54}\)       \(\text{X}=6\)

Answer 3

\(a,\)\(\frac{4}{5}=\frac{X}{35}\)

\(\Rightarrow\)\(X=35\times\frac{4}{5}\)

\(\Rightarrow\)\(X=28\)

\(b,\)\(\frac{12}{15}=\frac{72}{X}\)

\(\Rightarrow\)\(X=72\div\frac{12}{15}\)

\(\Rightarrow\)\(X=90\)

\(c,\)\(\frac{125}{300}=\frac{5}{X}\)

\(\Rightarrow\)\(\frac{5}{12}=\frac{5}{X}\)

\(\Rightarrow\)\(X=12\)

\(d,\)\(\frac{X}{9}=\frac{36}{54}\)

\(\Rightarrow\)\(\frac{X}{9}=\frac{6}{9}\)

\(\Rightarrow\)\(X=6\)

Answer 4

A28/35 b72/90 c5/12 d 36/54

Answer 5

A ) 4/5 = 28/35

B) 12/15 = 72/90

C) 125/300 = 5/12

D) 6/9 = 36/54

Answer 6

4/5 = 28/35

12/15 = 72/90

125/300 = 5/12

6/9 = 36/54

Answer 7

ko bít

Answer 8

khó thế nhờ ?

Answer 9

4/5 = 28/35

12/15 = 72/90

125/300 = 5/12

6/9 = 36/54

Answer 10

35000000 NHÂN 8756 +9<48735467844e9