A** ratio** is the relationship between two amounts. A ratio can be expressed as a fraction.

What comes to mind is icing cupcakes. If I use one cup of vanilla cake icing to ice 4 cupcakes, and one cup of chocolate icing to ice 2 cup cakes, which cup cakes have more icing on them, the vanilla cupcakes or the chocolate cupcakes?

**Clue: **

**1. **The ratio for each type of icing to the number of cupcakes is:

1 cup vanilla icing: 4 cupcakes

1 cup chocolate icing: 2 cupcakes

**2. **The fraction representing each ration is:

1 cup vanilla icing/4 cupcakes

1 cup chocolate icing/2 cupcakes

**Math: ** For any fraction, when the denominator number **increases,** the fraction value **decreases. **For example, 1/4 is less than 1/2.

This is because the quantity of the numerator is spread out over the size of the denominator.

So which cupcakes have a thinner layer of icing:

1. The vanilla which have 1 cup of icing spread over the surface of 4 cupcakes?

2. The chocolate which have 1 cup of icing spread over the surface of 2 cupcakes?

**Answer: The chocolate cupcakes have more icing. **

More Later, Janice

For more information about ratios and other math examples, see