# SSAT Middle Level Math : How to add fractions

## Example Questions

### Example Question #482 : Concepts

Which of the following is the sum of sixty-nine tenths, sixty-nine thousandths, and sixty-nine ten-thousandths?

Explanation:

Sixty-nine tenths, sixty-nine thousandths, and sixty-nine ten-thousandths can be rewritten as 6.9, 0.069, and 0.0069, respectively. Add, appending zeroes at the end of each number as needed:

### Example Question #3 : Additive Inverse Property

Which of the following statements demonstrates the inverse property of addition?

None of the examples in the other responses demonstrates the inverse property of addition.

Explanation:

The inverse property of addition states that for every real number, a number exists, called the additive inverse, such that the number and its inverse have sum 0. Of the statements given, only

demonstrates this property, so it is the correct choice.

### Example Question #3 : Additive Identity Property

Which of the following statements demonstrates the identity property of addition?

None of the examples in the other responses demonstrates the identity property of addition.

Explanation:

The identity property of addition states that there is a number 0, called the additive identity, that can be added to any number to yield that number as the sum. Of the four statements,

demonstrates this property.

### Example Question #1081 : Hspt Mathematics

Which of the following is the sum of two-thirds and one-fifth?

Explanation:

Since , rewrite each fraction as its equivalent in fifteenths and add the numerators:

### Example Question #178 : Decimals

Which of the following is the sum of nine tenths and nineteen thousandths?

The correct response is not given in the other choices.

Explanation:

Nine tenths is equal to 0.9; nineteen thousandths is equal to 0.019. Add them, rewriting 0.9 as 0.900:

### Example Question #1 : Fractions

The time is now 11:17 AM. What time will it be in three hours and twenty-four minutes?

Explanation:

The time is 11:17 AM. In 24 minutes, the minutes will read , so it wil be 11:41 AM. Let's then add three hours to it.

The time will be 2:41 PM.

### Example Question #395 : Arithmetic

Explanation:

Rewrite using the lowest comon denominator. Since :

### Example Question #33 : Operations With Fractions

Solve:

Explanation:

The least common multiple of 2 and 9 is 18.

Explanation:

### Example Question #2 : How To Add Fractions

Which of the following expressions is equal to  ?

Explanation:

Rewrite both numbers as decimals:

, so

, so

Add the decimals vertically, lining up the decimal points: