SSAT Middle Level Math : How to add fractions

Study concepts, example questions & explanations for SSAT Middle Level Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #181 : Fractions

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

Possible Answers:

Correct answer:

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 #11 : How To Add Fractions

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

Possible Answers:

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

Correct answer:

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 #1 : Additive Identity Property

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

Possible Answers:

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

Correct answer:

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 #12 : How To Add Fractions

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

Possible Answers:

Correct answer:

Explanation:

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

Example Question #11 : How To Add Fractions

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

Possible Answers:

The correct response is not given in the other choices.

Correct answer:

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?

Possible Answers:

Correct answer:

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 #1 : How To Add Fractions

Add:

Possible Answers:

Correct answer:

Explanation:

Rewrite using the lowest comon denominator. Since :

Example Question #1 : Addition With Fractions

Solve:

Possible Answers:

Correct answer:

Explanation:

The least common multiple of 2 and 9 is 18.

Example Question #11 : How To Add Fractions

Possible Answers:

Correct answer:

Explanation:

Add the numerators:

 

Example Question #3 : How To Add Fractions

Which of the following expressions is equal to  ?

Possible Answers:

Correct answer:

Explanation:

Rewrite both numbers as decimals:

, so 

, so 

Add the decimals vertically, lining up the decimal points:

   

 

Learning Tools by Varsity Tutors