Multiplication and division of fractions Flashcards
(27 cards)
What is the first step in multiplying two fractions?
Multiply the numerators together.
What do you do with the denominators when multiplying fractions?
Multiply the denominators together.
True or False: To multiply fractions, you add the numerators.
False
What is the product of 1/2 and 3/4?
3/8
Fill in the blank: To simplify a fraction, you divide the numerator and denominator by their _____ .
greatest common factor
What is the rule for dividing fractions?
Multiply by the reciprocal of the divisor.
True or False: When dividing fractions, you keep the first fraction the same.
True
What is the reciprocal of 2/3?
3/2
How do you divide 1/2 by 3/4?
Multiply 1/2 by the reciprocal of 3/4, which is 4/3.
What is the result of (2/5) ÷ (4/7)?
7/10
What happens to the answer when you multiply a fraction by 1?
The answer remains the same.
Fill in the blank: Multiplying fractions results in a _____ fraction.
new
What is 3/4 multiplied by 2/3?
1/2
True or False: When dividing a fraction by a whole number, you can write the whole number as a fraction with a denominator of 1.
True
What is the first step in dividing fractions?
Find the reciprocal of the second fraction.
What do you call the number on the top of a fraction?
Numerator
What do you call the number on the bottom of a fraction?
Denominator
What is the product of 5/6 and 2/5?
1/3
Fill in the blank: To multiply fractions, you multiply the _____ and then the _____.
numerators, denominators
What is 1/3 divided by 2/5?
5/6
True or False: Dividing by a fraction is the same as multiplying by its reciprocal.
True
What is the result of (3/4) × (8/3)?
2
What is 7/8 divided by 1/2?
7/4 or 1 3/4
What do you do to simplify a fraction before multiplying?
Cancel common factors.
