Question

There are 20 girls and 16 boys in a classroom. complete the table of ratios below. ​

Answer 1

The ratio of boys to girls is
`(16)/(20)`

The simplified ratio of boys to girls is
`(4)/(5)`

So the ratio of girls to total students is
`(20)/(36)`

The simplified ratio of girls to total students is
`(5)/(9)`

Explanation:

Ratio of a to b:

The ratio of a to b is given by:

`(a)/(b)`

Boys to girls:

There are 16 boys and 20 girls.

So the ratio of boys to girls is
`(16)/(20)`

Both these numbers can be simplified by 4, 16/4 = 4, 20/4 = 5. So the simplified ratio of boys to girls is
`(4)/(5)`

Girls to total students

There are 20 girls and 20 + 16 = 36 total students.

So the ratio of girls to total students is
`(20)/(36)`

Both these numbers can be simplified by 4, 20/4 = 5, 36/4 = 9. So the simplified ratio of girls to total students is
`(5)/(9)`