Skills · Ratios & Proportions · Ratios & Percents
Writing ratios
Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.
Problem types
- part to part: 12 boys and 18 girls. Girls to boys in simplest form: 3 : ?
- part to whole: 12 boys and 18 girls. Girls to all the members in simplest form: 3 : ?
- part to part, from the whole: 30 members: 12 boys and the rest girls. Boys to girls in simplest form: 2 : ?
- the whole from the ratio: Boys to girls is 2 : 3, with 12 girls. How many members in all?
Sample Sheet · Level 1
- 18 cats and 27 dogs. Cats to dogs in simplest form: 2 :
- 28 cups and 24 plates. Cups to all the dishes in simplest form: 7 :
- 6 cats and 16 dogs. Dogs to all the animals in simplest form: 8 :
- 12 pens and 9 pencils. Pens to all the pens and pencils in simplest form: 4 :
- 20 cars and 15 trucks. Trucks to cars in simplest form: 3 :
- 24 boys and 20 girls. Boys to girls in simplest form: 6 :
- 10 apples and 8 oranges. Oranges to all the pieces of fruit in simplest form: 4 :
- 24 nickels and 9 dimes. Dimes to nickels in simplest form: 3 :
Answer key
- 2 : 3
- 7 : 13
- 8 : 11
- 4 : 7
- 3 : 4
- 6 : 5
- 4 : 9
- 3 : 8
Sample Sheet · Level 3
- 25 nickels and 35 dimes. Dimes to nickels in simplest form: 7 :
- 6 boys and 14 girls. Boys to all the members in simplest form: 3 :
- 68 dishes: 32 cups and the rest plates. Cups to plates in simplest form: 8 :
- 36 apples and 8 oranges. Apples to all the pieces of fruit in simplest form: 9 :
- 21 forks and 49 spoons. Spoons to forks in simplest form: 7 :
- Pens to pencils is 5 : 9, with 10 pens. How many pens and pencils in all?
- Cats to dogs is 7 : 4, with 35 cats. How many animals in all?
- 104 vehicles: 56 cars and the rest trucks. Cars to trucks in simplest form: 7 :
Answer key
- 7 : 5
- 3 : 10
- 8 : 9
- 9 : 11
- 7 : 3
- 28 pens and pencils
- 55 animals
- 7 : 6
Make your own
Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.