### Theory

 1 Recalling about fractions 2 Ratio 3 Properties of ratio 4 Ratio in simplest form

### Exercises

 1 Make the ratio to simplest form Difficulty: easy 3 2 Fill in the blanks with suitable ratio Difficulty: easy 3 3 Find the ratio between two people Difficulty: easy 2 4 Simplify the ratio Difficulty: easy 3 5 Determine the ratio Difficulty: easy 2 6 Determine the ratio Difficulty: medium 4 7 Find the ratio between two shapes Difficulty: medium 4 8 Evaluate the ratio of quantities Difficulty: medium 4 9 Predict the ratio between the quantities Difficulty: medium 4 10 Calculate the ratio of vehicles Difficulty: medium 4 11 Reduce the ratio to simpler form Difficulty: hard 4 12 Determine the ratio between two quantities Difficulty: hard 5 13 Make the ratio of amount in a simpler form Difficulty: hard 1 14 Solve the puzzle Difficulty: hard 8

### Tests

 1 Training test Difficulty: medium 10 2 Training test Difficulty: medium 10

### Teacher manuals

 1 Methodical recommendation