Question

1. Tính :

\(\frac{21}{11}x\frac{22}{17}:\frac{42}{34}\)Mọi người giúp em với ạ ! ai nhanh em cho 3 tick nhé 

Answer 1

\(\frac{21}{11}\times\frac{22}{17}:\frac{42}{34}\)

\(=\frac{44}{17}:\frac{42}{34}\)

\(=\frac{44}{21}\)

Hok tốt

Answer 2

\(\frac{21}{11}.\frac{22}{17}\div\frac{42}{34}\)

\(=\frac{21}{11}.\frac{22}{17}.\frac{34}{42}\)

\(=\frac{21.22.34}{11.17.42}\)

\(=\frac{21.11.2.17.2}{11.17.2.21}\)

\(=2\)

Answer 3

#)Giải :

\(\frac{21}{11}x\frac{22}{17}:\frac{42}{34}=\frac{42}{17}:\frac{42}{34}=\frac{42}{17}x\frac{34}{42}=\frac{34}{17}=2\)

#)Chúc bn học tốt :D

Answer 4

\(\frac{21}{11}\cdot\frac{22}{17}\div\frac{42}{34}=\frac{21\cdot22\cdot34}{11\cdot17\cdot42}=2\)

Answer 5

\(\frac{21}{11}x\frac{22}{17}:\frac{42}{34}=\frac{42}{17}:\frac{42}{34}=\frac{42}{17}x\frac{34}{42}=\frac{34}{17}=2\)

học tốt

k nhé

Answer 6

\(\frac{21}{11}x\frac{22}{17}:\frac{42}{34}\)=21 x \(\frac{2}{17}\): \(\frac{21}{17}\)= \(\frac{42}{17}\)x \(\frac{17}{21}\)= \(\frac{42}{21}\)=2

Answer 7

\(\frac{21}{11}\times\frac{22}{17}:\frac{42}{34}\)

\(=\frac{21\times11\times2}{11\times17}\times\frac{34}{42}\)

\(=\frac{42}{17}\times\frac{34}{42}\)

\(=\frac{34}{17}=1\frac{18}{17}\)