Flashcards for:
How to Multiply and Divide Fractions
What is the key concept to remember when dividing fractions?
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The key concept to remember when dividing fractions is to use the 'keep change flip' rule to convert the division into multiplication.
How do you multiply two fractions?
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To multiply two fractions, you just need to multiply across the numerators and across the denominators.
What is the result of multiplying 3/5 by 4/9?
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The result of multiplying 3/5 by 4/9 is 4/15.
How do you simplify a fraction after multiplication?
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After multiplication, you can simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor.
What is the process called when you divide both numbers in a fraction by the same number?
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The process of dividing both numbers in a fraction by the same number is called reducing or simplifying the fraction.
What is the rule for dividing two fractions?
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The rule for dividing two fractions is to keep the first fraction the same, change division to multiplication, and then flip the second fraction.
How do you change division to multiplication when dividing fractions?
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To change division to multiplication, you multiply the first fraction by the reciprocal of the second fraction.
What is the reciprocal of a fraction?
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The reciprocal of a fraction is the fraction with the numerator and the denominator switched.
How do you multiply the fractions when dividing?
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When dividing fractions and changing the operation to multiplication, you multiply across the numerators and across the denominators as with multiplication.
What is an improper fraction?
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An improper fraction is a fraction where the numerator is greater than or equal to the denominator.
How do you convert an improper fraction to a mixed number?
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To convert an improper fraction to a mixed number, divide the numerator by the denominator and express the remainder as a fraction.
What does 'keep change flip' mean in fraction operations?
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'Keep change flip' is a mnemonic for fraction division where you keep the first fraction, change division to multiplication, and flip the second fraction.
Can you simplify the fraction 15/12?
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Yes, the fraction 15/12 can be simplified by dividing both the numerator and the denominator by 3, resulting in 5/4.
What happens if you cannot simplify a fraction further?
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If you cannot simplify a fraction further, it is said to be in its simplest form.
Is it possible to multiply fractions and get a whole number?
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Yes, it is possible to multiply fractions and get a whole number if the numerator is a multiple of the denominator.
What is the first step in dividing fractions?
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The first step in dividing fractions is to identify the two fractions to be divided.
How do you flip a fraction?
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To flip a fraction, you switch the numerator and the denominator.
Can you multiply fractions and get an improper fraction?
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Yes, multiplying fractions can result in an improper fraction if the product of the numerators is greater than the product of the denominators.
What is the key concept to remember when multiplying fractions?
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The key concept to remember when multiplying fractions is to multiply the numerators together and the denominators together.
What is the key concept to remember when dividing fractions?
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The key concept to remember when dividing fractions is to use the 'keep change flip' rule to convert the division into multiplication.
How do you multiply two fractions?
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To multiply two fractions, you just need to multiply across the numerators and across the denominators.