Numbers and operations

Count in your head!

Count in your head!

Count in your head!

Give the common fraction form of the following decimal. Use \ symbol as fraction line.

When planning a bike ride, the organisers thought that the distance would be divided 4 : 6 : 7 : 3 over the four days. How much kilometres cycling did they do on the third day if they cycled 180 km in total?

A wheel turns through 45 revolutions per 30 seconds. How many revolutions do the wheel turn through per 4,5 minutes?