Math Forum : Fractions : Dr Math Q&As, Elementary Level

Fractions

Elementary School Questions: Ask Dr. Math

Back to Contents
_____________________________________

Below are some questions and answers from our archive of questions sent via e-mail by K12 students and teachers to Ask Dr. Math. You may also browse the elementary level archive by category.

Adding and Subtracting Fractions and Mixed Numbers
Multiplying Fractions and Mixed Numbers
Dividing Fractions and Mixed Numbers
Reducing Fractions
Rounding Fractions
Fractions and Decimals
Rational and Irrational Numbers

Adding and Subtracting Fractions and Mixed Numbers

Adding Fractions: Can you help me with this question? 1 1/2 + 4 3/2.
Adding Improper Fractions: 3 1/4 + 5 3/12? I've been trying this over and over again and I still don't get it!
Common Denominators: Why do fractions need common denominators in order to be added together?
Mixed Numbers: How can 7/3 be 2 and 1/3?
Numerators and Denominators in Addition: Why do we add numerators but not denominators when we add fractions with like denominators?
Subtracting Improper Fractions: What is: 3 and 4/9 - 2 and 8/7? What is: 4 and 5/3 + 3 and 6/7?
Working with Mixed Number Fractions: How do I subtract, add, or multiply a mixed number fraction?

Multiplying Fractions and Mixed Numbers

Multiplying Fractions: I need help with problems such as this one: 3 1/4 x 3/4 = ?
Multiplying and Adding Fractions: How do I solve (1/3 + 2/5) x 3/4 ?
Multiplying Fractions and a Whole Number: How are problems like 3/5 x 4 done?
Multiplying Unlike Fractions: What is the fastest way to multiply unlike fractions?
Multiplying and Dividing Mixed Fractions: How do you divide 1 1/2 by 9/10 or multiply 8 1/4 by 2 2/3?
Multiplying by Fractions and Decimals: What number is 3\10 more than .025?
What is 4/5*10?: What is the answer to this fraction? Please explain.
Working with Mixed Number Fractions: How do I subtract, add, or multiply a mixed number fraction?
Working with Mixed Numbers: I was wondering if you could tell me the proper sequence for dividing and multiplying mixed numbers.

Dividing Fractions and Mixed Numbers

Dividing 800 by 500: A nine-year-old asks: How can I divide 800 by 500?
Dividing by a Fraction: Why is it that when dividing fractions you have to multiply by the reciprocal?
Dividing Fractions: My class would like an explanation for why you invert and multiply when dividing fractions.
Dividing a Whole Number by a Fraction: What are the steps to divide a whole number by a fraction?
Fractions, Improper Fractions, Mixed Numbers: How do you turn an improper fraction into a mixed number?
Great question about fractions: If 1/4 of a number equals 1/20, then what does 5/4 of this same number equal?
Multiplying and Dividing Mixed Fractions: How do you divide 1 1/2 by 9/10 or multiply 8 1/4 by 2 2/3?
Two Division Questions: There are 9 men. How many cookies would each man get if there were 113 cookies? Also, what is the answer to 1,623,341 divided by 1.632 x 2389?
What is 12/8?: We are studying division. What is 12/8?

Reducing Fractions

Adding, Subtracting, Multiplying, and Dividing Fractions: I am ten years old and I don't understand lower-term fractions.
Reducing Fractions: What is the easiest method of reducing fractions to lowest terms?

Rounding Fractions

Rounding Numbers: When rounding fractions, would 1/3 be considered 1/2 or 0?

Fractions and Decimals

Fractions for Repeating Decimals: Convert 3.04050505.... into a fraction...
Reducing Fractions to Lowest Terms: How do you bring a fraction like 5/8 to its lowest term?
Multiplying by Fractions and Decimals: What number is 3/10 more than .025?
Why We need Decimals: Why do we need decimals?

Rational and Irrational Numbers

Pi, Irrational Numbers: What is Pi and how does it work? What are rational numbers and what are irrational numbers? How do they work
Rational and Irrational Numbers: What is the difference between rational and irrational numbers?

Back to Contents

Mara Landers

[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help

The Math Forum is a research and educational enterprise of the Drexel School of Education.