ISEE Middle Level Math : Fractions

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

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Example Questions

Example Question #32 : How To Subtract Fractions

Possible Answers:

 

Correct answer:

Explanation:

Subtract the numerators and keep the denominator as is:

Answer: 

Example Question #33 : How To Subtract Fractions

Evaluate:

Possible Answers:

Correct answer:

Explanation:

By the order of operations, carry out the operations in parentheses first; since there is a multiplication and a subtraction present, carry them out in that order. Finally, carry out the remaining subtraction:

Example Question #281 : Fractions

Subtract:

Possible Answers:

Correct answer:

Explanation:

To solve, subtract the numerators and leave the denominators the same:

Answer:

Example Question #282 : Fractions

Subtract:

Possible Answers:

Correct answer:

Explanation:

To solve, subtract the numerators and leave the denominators the same:

Answer: 

Example Question #283 : Fractions

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

Possible Answers:

Correct answer:

Explanation:

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

     

     

Example Question #284 : Fractions

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

Possible Answers:

Correct answer:

Explanation:

Since , express each fraction as its equivalent in fifteenths, and subtract the numerators, as follows:

Example Question #285 : Fractions

Subtract:

Possible Answers:

Correct answer:

Explanation:

Subtract the numerators and leave the denominators the same:

Answer:

Example Question #286 : Fractions

Subtract:

Possible Answers:

Correct answer:

Explanation:

Subtract the numerators and leave the denominators the same:

Answer: 

Example Question #39 : How To Subtract Fractions

The time is now 2:17 AM. What time was it four hours and thirty-six minutes ago?

Possible Answers:

Correct answer:

Explanation:

Two hours and seventeen minutes have elapsed since midnight. Since four hours and thirty-six minutes make a greater quantity, we need to look at this as fourteen hours and seventeen minutes having elapsed since noon. 

Change both to minutes as follows:

14 hours 17 minutes:

 minutes

4 hours 36 minutes:

 minutes

Subtract these quantities:

 minutes have elapsed since noon. 581 minutes is equal to

 hours, or 9 hours 41 minutes after noon, so the time was 9:41 PM.

Example Question #41 : How To Subtract Fractions

Subtract the following fractions:

Possible Answers:

Correct answer:

Explanation:

Subtract the following fractions:

To solve this problem, we need to find a common denominator. 6 will work, because both 6 and 3 fit evenly into 6.

We need to change "two-thirds" into sixths. to do so, multiply the top and bottom of the term by 2. Then subtract by taking 5-4 and keeping the denominator.

So our answer becomes:

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