Question

Chứng tỏ các phân số sau đây = nhau:

\(\frac{56}{77},\frac{5656}{7777},\frac{565656}{777777}\)

ai làm đc mk tick cho

phải giải chi tiết nha

Answer 1

\(\text{Ta có: }\frac{5656}{7777}=\frac{5656:101}{7777:101}=\frac{56}{77}\left(1\right)\)

            \(\frac{565656}{777777}=\frac{565656:10101}{777777:10101}=\frac{56}{77}\left(2\right)\)

\(\text{Từ (1) và (2) }\Rightarrow\frac{56}{77}=\frac{5656}{7777}=\frac{565656}{777777}\)

Answer 2

\(\frac{5656}{7777}\)=\(\frac{56x101}{77x101}\)=\(\frac{56}{77}\)

\(\frac{565656}{777777}\)=\(\frac{56x10101}{77x10101}\)=\(\frac{56}{77}\)

Suy ra \(\frac{56}{77}\)=\(\frac{5656}{7777}\)=\(\frac{565656}{777777}\)

Answer 3

\(\frac{5656}{7777}=\frac{56x101}{77x101}=\frac{56}{77}\)

\(\frac{565656}{777777}=\frac{56x10101}{77x10101}=\frac{56}{77}\)

Vậy :\(\frac{56}{77}=\frac{5656}{7777}=\frac{565656}{777777}\)

Ai k mik mik sẽ k lại nha !