TB 5C p.80-81 Word problems (Division of Fractions)

TB 5C p.80-81 Word problems (Division of Fractions)

Multiple Choice

On the 42 km racing track, every

 $3\frac{1}{2}$  km forms a section and there is a first aid station in each section. How many first aid stations are there on the racing track?

•  $42\div3\frac{1}{2}$  

•  $42\times3\frac{1}{2}$  

•  $3\frac{1}{2}\div42$  

•  $3\frac{1}{2}\times42$  

Multiple Choice

A staff is going to pour

 $1\frac{1}{5}$  L of water into small cups for the competitors. Each cup can hold $\frac{1}{20}$  L of water. How many cups of water are there in total?

•  $1\frac{1}{5}\div\frac{1}{20}$  

•  $1\frac{1}{5}\times\frac{1}{20}$   

•  $\frac{1}{20}\div1\frac{1}{5}$   

•  $\frac{1}{20}\times1\frac{1}{5}$  
  

Multiple Choice

The champion spent

 $2\frac{1}{5}$ hours to finish the race of $42\frac{1}{5}$ km. How many kilometres did he run per hour on average?

•  $42\frac{1}{5}\div2\frac{1}{5}$  

•  $2\frac{1}{5}\div42\frac{1}{5}$   

•  $42\frac{1}{5}\times2\frac{1}{5}$   

•  $2\frac{1}{5}\times42\frac{1}{5}$  
  

Multiple Choice

The champion was interviewed by the press for 20 minutes. That means how many hours did he spend for the interview?

•  $60\div20$  
  

•  $20\div60$   

•  $20\times60$   

•  $60\times20$