# Unit Parts Practice

Tuesday 12/2/08

### Definitions

• The unit is whatever is being                                 .

• The denominator is the number that says how many          the          is split into.

• The word "denominator" literally means          — it gives the parts their         .

• Mathematically, breaking a unit into some number of parts is         .

• Some unit parts have special names:         , not seconds, and         , not fourths.

### Identifying the unit, part, and denominator

For each of the examples below, fill in what is the unit, the denominator, and the part. Then, write a math sentence showing the relationship between these things.
ExampleUnitDenom.Part1/denom. unit = part

A quarter of a gallon is a quart.  1/4·12 = 3

Nine is a sixth of fifty four. A quart can be broken down into four cups.

### Words and math symbols

1. Write "1/3 gallon" in words.

2. Write "a fifth of a pie" in math symbols.

3. Write "1/4·24" in words.

4. Write "an eighth of forty eight" in math symbols.