N11: identify and work with fractions in ratio problems

What is a ratio to fraction?

A comparison of the ratio of parts in becoming a fraction

How to convert ratios to fractions

The whole ratio of a:b is a/a+b + b/a+b

Write blue as a fraction if blue: red is 3:2

3/2+3=3/5

A factory produces cement and provides cement to construction sites 1 and 2 in a ratio of 7:3. What fraction of total cement does site 2 recieve?

7+3=10

3/10